Reporter

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  1. Montage et préparation de la X-Ray X1. Introduction. Pour être tout-à fait honnête, le "renouveau" de la formule 1 à l'échelle 1/10° électrique me laissait quelque peu sceptique. Il faut dire, que vu mon âge avancé, j'avais connu la montée et la chute inexorable et prévisible de cette catégorie à la fin des années 90. La dernière course où j'ai vu rouler des Formules 1 était le Model Car Show de 2001, et depuis je n'en ai plus vu pendant presqu'une douzaine d'années en compétition. Certes, des constructeurs, principalement japonais, Tamiya en tête, s'intéressait toujours à cette catégorie, et des compétitions étaient toujours organisées en Asie, mais également en Europe (championnats monomarques, ou championnats régionaux et nationaux dans certains pays, etc.). Puis c'est reparti, d'un coup, par l'arrivée de nouveaux constructeurs, motivés par des championnats à forte visibilité. Pour justifier mon septicisme de départ, je dirais que cette catégorie est loin de n'avoir que des avantages. Tout d'abord citons des trains roulants très fortement exposés aux chocs, car ils ne sont pas protégés par une carrosserie enveloppante. Les roues découvertes rendent de plus les touchettes entre autos parfois plus que hasardeuses. Les appuis aérodynamiques sont également sensiblement plus faibles que dans les autres catégories à cette échelle. Citons encore la nécessité pour pouvoir rouler correctement de disposer d'une surface ou d'une piste d'une certaine qualité, propre et accrocheuse. Et soyons honnête, beaucoup de F1 modernes que j'ai pu essayer, mais il y a eu des exceptions fort heureusement, sont un peu ennuyeuses à piloter, la faute à des trains avants paresseux et à des trains arrières avouant trop rapidement leur limite à mon goût. Et enfin, enfonçant encore un peu le clou en évoquant un manque d'inspiration chronique de l'immense majorité des constructeurs officiant dans cette catégorie, loin du foisonnement créatif qui existait dans les catégories type Pan Car à leur apogée, se contentant de réchauffer de vieilles recettes techniques. D'aucuns argumentent sur le faible coût et la facilité d'entretien. Mais ce n'est que partiellement vrai. Si on cherche à aller vite, quelque soit la catégorie, cela a toujours un coût. Et même si on sait modérer son budget, l'entretien d'une Pan Car, F1 ou autres, doit se faire avec soin, car ses performances et sa fiabilité dépendent de nombreux détails. Toutefois, c'est paradoxalement dans ces désavantages que se présentent l'intérêt de la catégorie Formule 1, avec des pneus en caoutchouc bien sûr. En effet, nul besoin de motorisation démente pour se faire plaisir, et une fois correctement réglée, une propulsion est très intéressante à piloter. Il se produit en quelque sorte une forme d'auto-régulation de par le grip limité et les faibles appuis aérodynamiques. Qui plus est, le mode propulsion reste toujours une superbe école de pilotage, particulièrement pour le dosage des gaz à l'accélération. De plus, la relative simplicité mécanique permet de tester et d'investiger de nouvelles voies techniques plus facilement, un terreau idéal pour les développeurs en herbe comme moi. Souhaitant tester quelques idées un peu déraisonnables destinées aux châssis Pan Car avec des pneus en caoutchouc, mon choix s'est porté sur la nouvelle production de la marque slovaque XRay dans cette catégorie, la X1, plus par élimination et par pragmatisme (qualité connue et reconnue, palmarès naissant et set-up disponibles facilement, importateur local sérieux et professionnel, disponibilité et suivi des pièces, etc...) que par réel coup de coeur il faut l'avouer. Mais au fil du montage, cette X1 s'est révélée de plus en plus plaisante comme on va le voir par la suite. http://www.overrc.com/techniques/reglages/xrayx1/xrayx1.html www.overrc.com
  2. il y a une explication de MatthieuL dans le sujet du b5: http://www.petitrc.com/_forumphp/showthread.php?67798-Team-Associated-B5-nouvelle-plateforme-4x2/ reste a mettre la main dessus
  3. 22-4 Shorty Chassis Conversion Kit (TLR338002) Key Features Chassis is designed to fit a “shorty LiPo” without any modification to the chassis or mud guard Aluminum battery stop included allows for shorty pack to be mounted in the front or rear position Additional milling to chassis lowers the total weight by 18-20g An open pocket under the motor has proven to lower motor temperatures approximately 20-30 degrees Fahrenheit CNC Machined from 2.5mm thick 7075-T6 Aluminum Directly fits onto the 22-4 without the need for any other parts or modifications Overview As the TLR Race Team continues to push the envelope of performance for the 22-4, they have found the weight distribution and overall balance of the 22-4 to be much better when running a “shorty” LiPo on the left side of the chassis and mounting the ESC on the right. This moves the weight a little more forward overall, improves the corner weight balance, and reduces the total weight by 75-100g (depending on the battery pack used). This new configuration is used on most all TLR 22-4 setups since mid-2014 including Ryan Maifield’s 2015 Reedy Race Champion setup. Designed as a direct replacement, no other parts are needed to convert to your 22-4!
  4. TE-127-Y Front Spool( For Yokomo BD7'15 )
  5. http://www.brca10thoffroad.co.uk/day-3-efra-2015-4wd-euros/
  6. The exciting world of 200mm 1:10 GT racing… synonymous with “speed,” “precision,” and “champions.” The ideal class for XRAY to unveil its latest engineering masterpiece: the XRAY X10 “GT version.” Based on the all-new XRAY XII 1:12 pan-car, XRAY Project Manager Martin Hudy created the perfect platform to dominate the new World GT class of 200mm 1:10 pan cars. XRAY X10 Knowing that the X10 would need a versatile design — participating in classes with either open-tire rules or spec-tire rules — particular attention was paid to the rear end of the car to give it the perfect combination of rear traction, corner speed and steering under any conditions. Well-proven yet “conventional” T-bar technology again proved to make for faster and more consistent handling. Top-quality materials such as self-developed composite mixtures, HUDY Spring Steel™, premium Swiss 7075 T6 aluminum and highest-grade graphite are part of XRAY’s signature, and the X10 has them in abundance. Designed in virtual reality using the world’s most sophisticated CAD tools, and manufactured using the world’s best machining and molding machinery, the X10 achieves a level of premium perfection in all details that is second to none. All parts are purpose-designed and manufactured by XRAY, so all parts fit and work perfectly together, with many parts fully compatible between the X10 and XII platforms. The XRAY pedigree is carried over into the X10, allowing for a car that is very easy to build and dial in for any level of RC racer. Setup and tuning could not be easier, and exquisite quality and customer service are our promise to you. Get the holeshot, lead the pack, take the win with the new XRAY X10. Main features: § All-new XRAY 1/10 pan-car with authentic 100% self-developed XRAY parts, designed and manufactured parts by XRAY in Europe Legendary XRAY premium design, workmanship & material quality and unmatched attention to the finest details Based on the conventional and proven pan car platform with redesign by legendary RC designer and XRAY’s award-winning Chief Designer - Ing. Hudy Juraj Simple yet effective and proven design, well thought-out details, unmatched precision of all small details Specially designed and optimized for brushless and brushed motors High-competition design with focus on ultra-low weight, resulting in super-lightweight construction. Optimized for indoor carpet racing as well as outdoor asphalt racing CNC-machined chassis from custom-manufactured 2.5mm high-grade graphite material with specially-designed compound for carpet racing and asphalt racing Chassis accommodates 4-cell battery packs for GT racing Chassis layout optimally designed to give sufficient stiffness for excellent handling, but flexible enough to generate sufficient grip and traction Super-narrow chassis design and layout with all weight centralized along the centerline Chassis and rear pod features pre-drilled centerline holes for optimum weight balance adjustment using HUDY Balancing Tool #107880 High-density foam bumper protects the front of the chassis in crashes Robust body posts with fully-adjustable body holders; optional super fine +1 or +2mm body backstops available optionally for even more super-fine body height adjustment. High-competition, fully-adjustable front suspension with super-clean design of all composite suspension parts All composite parts manufactured by XRAY using premium self-developed composite mixtures which guarantee sufficient flex of the suspension parts yet hard enough to withstand heavy crashes Highest quality of all composite parts ensures super-precise fitment, easy assembly, and smooth operation of all parts Lower fixed suspension arms feature embedded self-locking nuts for easy assembly, prevents bending in the suspension and unwanted chassis tweak Fast & easy front caster adjustment via included clips Reactive caster adjustment of preset 2.5°, 5.0° or 7.5° via easy-to-change eccentric bushings Super-tiny yet robust steering blocks with uniquely-designed axles which prevent axle spinning while tightening the wheel locking nuts Additional front axle shims for adjustable front track-width Ultra-precise wheel axles CNC-machined from premium HUDY Spring Steel™ additionally hardened and hand ground for precision fitment Pivoting front suspension with super-smooth hardened steel kingpins supported by soft springs; optional medium, hard, and extra-hard suspension springs available as options Front ride height adjustment and front track-width adjustment via shims High-precision, HUDY Spring Steel™ pivot balls ensure super-fine movement of the front suspension under compression Graphite front upper brace between front suspension pins provides appropriate stiffness and flex Front upper 3mm adjustable HUDY Spring Steel™ camber turnbuckles are lightweight yet can withstand heavy crashes Lightweight aluminum servo mounts with two different positions allow fitment of most popular micro and mid-size steering servos Tiny yet robust servo saver with easy Ackermann adjustment via shims mounted below pivot balls Tiny, ultra-flat composite battery holders keep batteries in place; multiple placement options (front, rear) for different chassis weight balance Tiny lightweight antenna mount secures lightweight yet strong molded fiberglass rollover antenna, also doubles as the shock absorber mount XRAY micro shock with similar design as it’s “big brother” counterpart in XRAY’s successful T2 touring car platform Fully-adjustable shock with aluminum shock body hard-anodized for ultra durability and additionally black coated for stylish look Fine-threaded shock body for quick and easy shock spring preload adjustment Tiny thin shock membrane gives super-smooth dampening characteristics Super-soft silicone shock O-ring for smooth operation while preventing oil leakage Ultra-finely finished shock shaft with precise-molded composite shock piston ensures optimum shock oil flow and smooth shock absorber action Simple yet smart shock construction allows for quick and easy shock-length adjustment for downstop adjustment Shock position adjustment via shimming of HUDY Spring Steel™ shock ball studs Rear suspension with conventional rear pod is adjustable via fiberglass T-bar, providing extremely easy assembly and tuning while being very effective and give the highest competitive performance T-bar included for carpet & asphalt racing; optional T-bars in different thickness available for super-fine tuning and adjustment Unique T-bar mounting methods allow for two different settings: Club race setting – direct mounting of T-bar to chassis without front pivotball gives limited adjustment possibilities (recommended for beginner drivers) Pro race setting – pivotball mounting of T-bar to chassis for more advanced adjustment possibilities (recommended for advanced drivers) Precision T-bar pivot balls machined from ultra-strong HUDY Spring Steel™ additionally hardened for perfect shape and smoothness Adjustable T-bar setscrews for adjusting chassis tweak Two different T-bar tweak screw positions for adjusting responsiveness Premium-grade graphite upper deck provides solid attachment for shock absorber to rear pod Special 1-piece aluminum damper pad holder is mounted independently from the rear body mount to ensure independent and equal left-right movement of rear pod Spring-loaded upper and lower damper pads provide addition control of rear pod movement; grease-retaining grooves in damper pads ensure equal and consistent friction characteristics Rear body posts are mounted to the chassis via a wide independently-mounted graphite holder, ensuring body downforce is properly transferred to the chassis Compact and ultra-lightweight rear pod constructed from high-strength aluminum bulkheads, rear aluminum brace, and thin but strong high-grade graphite plates Rear pod bulkheads CNC-machined from premium extra-hard Swiss 7075 T6 aluminum, additionally black coated for long life and stylish look. Rear bulkheads are strategically machined to reduce weight to minimum while retaining strength Super-easy motor top access Rear pod accommodates brushed or brushless motors Eccentric composite bushings included for ultra-fine rear ride height adjustment Aluminum rear hubs machined from lightweight aircraft aluminum, specially lightened and black coated for stylish look Super-lightweight rear axle made from 1-piece high-grade graphite rod, additionally precision hand ground to eliminate vibration and run-out Rear differential features high-grade precision carbide balls for spur gear, hardened and precision-ground D-steel shims, and premium carbide 3x8mm axial thrustbearing Lightweight rear wheel mounting screws for reduced rotating weight Rear left aluminum wheel hub with center-balanced clamping mounting system, ensures secure mounting while eliminating vibration and run-out Precision-molded spur gear made from XRAY's exclusive composite material, ensuring true running, super-quiet operation, super lightness and robustness for handling powerful motors Easy rear track-width adjustment via included shims Rear pod weight balance can be easily adjusted via shims between motor and bulkhead Optimized weight balance when using brushless motors; when using lighter brushed motors the weight balance can be adjusted by shimming motor in the rear pod http://www.teamxray.com/teamxray/news/newsdesc.php?news_id=1771&kategoria=1771&catName=New%20XRAY%20X10%20-%201/10%20Pan%20Car%20GT&Xnet_Session=dca9c880404c70a3e40668ec0ef955fc
  7. il y a comme un air de déjà vu http://www.petitrc.com/_forumphp/showthread.php?81674-Schumacher-Cougar-KF2&p=601746#post601746
  8. B5M / T5M / SC5M Chassis Brace With Fan Mounting This is a chassis brace for the Team Associated B5M / T5M / SC5M. Use M3x12 screws for the top mount. Use M3x16 screws for the fan mount for a skinny fan (10mm). Use M3x20 screws for the fan mount for a thick fan (15mm). Stock screws are used for the bottom mount. All screws not included. The brace uses a standard 30mm fan. http://www.shapeways.com/product/K9KEHYHPA/b5m-t5m-sc5m-chassis-brace-with-fan-mounting
  9. I guess it depends on what you mean by "low grip". I think this might mean different things to different people depending on what surfaces you typically run on. To someone here in the U.S. low grip means rooster tails on loose dirt but in the U.K. it might mean wet and/or sandy astroturf. Schumacher is specifically claiming dirt surfaces on their product page saying the kit addresses: " low and medium traction conditions such as dirt..." This is obviously good news. The layout looks very close to that of the YZ-2 with the motor maybe a little more forward. The owner of our track just started running a YZ-2 in favor of his RB6 and he adores it. With this kit for the KF2 I am hoping it puts it right there with it. Even if I don't end up running this car as my main buggy I am still thankful for the way it has forced me to learn about setup and vehicle dynamics. Definitely trial by fire. My recent experiment with using the LRP super shorty and moving the ESC back has taught me that the F/R weight ratio is only part of the equation. The car right now is very similar to my B5M in terms of side bite and lateral grip and handling (with way more steering) but it still doesn't have the forward bite, even with 4 degrees of anti-squat running identical tires (swapped over). I get too much wheel spin and if I loosen the slipper to compensate then I'm unable to clear jumps well so it is tough. This is probably why some people on this thread have felt the car feels a little sluggish. I thought some of this might be due to the belt vs gear drive and heavier weight of the car but I think it is probably the traction. If you watch some of the videos from the EOS races with Michael Orlowski driving against other world class pros on carpet you will not notice any problems with sluggishness! In fact, in the race I watched he was clearly the fastest car on the track but Lee Martin just has robotic consistency. I took the motor/trans pod assembly off my car in preparation for the new kit and weighed it. (See attached image). It comes in at 290g. The shorty lipo I have been using weighs about 205g. So by swapping these two things in the layout you are basically shifting around 85g more towards the rear of the car. The upper CF brace seen in the kit is replacing the aluminum side stiffeners from what I can tell so I will consider those to be a wash. My guess is that this change will put the car well into the 62% rear weight range and maybe just get to 63% depending on wheelbase configuration. But now we have the added flexibility of running a lighter battery to further reduce the weight in the front and this will be extremely useful. Some of the batteries referenced on Schumacher's page for the kit are about 155g. That should allow the rear to see even up to 64%. As a bonus the car should only weigh about 1515-1530g with a battery like this coupled with the CF chassis in the kit. This should make stock people happy. But the dynamics of the motor and the forces it exerts on the chassis during acceleration based on its position in the car are really what this kit is bringing to the table. My car with a a similar weight distribution to what this kit provides with lots of anti-squat still lacks the forward bite compared to other MM cars on our track surface. With the motor further back like this the vertical component of the force (downward) produced by the motor during acceleration is going to act on the chassis much further away from the center of mass (towards the rear) than it does with the existing low-grip position. In the low grip position the motor appears to sit very close to where the center of mass probably is on the car. So then you accelerate the downward force the chassis experiences would be like if you put your finger on top of the motor and pushed down. The whole car sits down a little because the motor is close to the center of the car. But now with the motor much further back the force should make the car sit down more during acceleration. And with the added weight in the rear it will make the effect even more pronounced. You should also be able to have more control over the pitch of the car in the air with this change. Equal throttle input will result in more pitch change than before. It is worth mentioning that the current trend in the B5M community is to use a 3-gear transmission on higher traction surfaces. This is because the motor is mounted in reverse and spins clockwise instead of counter-clockwise. This makes the front of the car pitch forward during acceleration instead of rearward and helps keep the car flatter on power in the turns, which adds steering. But you end up giving up some forward bite and most of the cars I have seen run extra weight in the rear to compensate. So the B5M people are trying to get corner speed by sacrificing rear grip with the 3-gear and we are trying to do the exact opposite with this kit for the KF2. Assuming this kit works well I think we are in a much better position for the future as tracks in the U.S. seem to be moving towards higher grip as a general trend. If the grip comes up just move the motor forward to keep the car flatter. This is a much more elegant design solution than turning the motor around and completely changing the vehicle dynamics IMO. And never mind you have to remember to use brake to pitch the car up in the air instead of throttle. That might be fine for Ryan Maefield but for people like me it is a nuisance.
  10. graphite parts http://www.teamyokomo.com/news/order_sheet/15/150731_z2_xxxg.pdf
  11. MIP carrying out market research on viability to remake MIP Legend convertion! You NEED to email Matt Olson Sales/Marketing/Team Manager at MIP to register interest so they can move this project forward. If they have enough interest it will happen! matt @ miponline.com Share and pass this on.
  12. When the TLR 22 was originally released, it revolutionized the buggy class with never before seen innovations that brought the buggy class back to new heights with many iconic features that the rest of the industry soon incorporated. Now, with almost 2 years of testing and development, Exotek introduces this new chassis upgrade that brings the venerable 22 buggy to the forefront of mid motor clay track performance. With it's simple and efficient layout, the EXO22 offers improved weight positioning of the battery and electronics to better suit a variety of track conditions. The EXO22 chassis allows standard inline shorty battery positioning or the incredibly easy to drive fast lateral shorty battery positioning. The EXO22 is offered with a machined 7075 alloy chassis for the most stability, traction and lowest CG and it is also offered with a carbon fiber chassis for those looking for the lightest weight and maximized responsiveness. EXO22 7075 MM CHASSIS SET for TLR22/ 22 2.0 EXO22 7075 ALLOY CONVERSION features; - Excellent for stock or mod. - Unmatched traction and low CG thanks to the the weight optimzed 7075 alloy chassis. - 3mm 7075 alloy bottom plate with 5mm carbon side rails for proper stiffness and strength. - Easy lipo access carbon lipo strap that also acts as a top plate. The lipo strap is fastened to the rear alloy brace and 2 alloys posts. - Alloy gear box brace is repositioned further back to allow improved rearward battery positioning. - Chassis allows easy switching between lateral mounted lipo and or inline mounted lipo. - Lipo strap has adjustable lipo holds to allow the battery to be shifted forward or back. - Machined 7075 alloy nose plate is used for durability and allows inexpensive chassis swaps should you chose to switch between the 7075 or carbon fiber lower chassis. - -2.5mm wheelbase for improved forward bite and rotation. - Includes machined delrin antenna mount. - Increased chassis 'footprint' allows more options for electronics placement. This also allows for proper weight balancing while maintaing a lower CG. - Carbon fiber components are specially made matte finish for improved scratch hiding and is just super trick looking! - Easily converts to the optional carbon fiber chassis via #1525 EXO22 CARBON REPLACEMENT CHASSIS. - Alloy fan mount- coming soon! - The wider than stock chassis requires the use of any body designed for the RB6 mid motor. A RB6 mid motor body provides ample battery clearance for a lateral mounted lipo, unlike any of the 22 bodies. Velcro is also required for body retention. EXO22 CARBON FIBER MM CHASSIS SET for TLR22/ 22 2.0 EXO22 CARBON CHASSIS CONVERSION features; - At 155 grams, with the hardware, the EXO22 carbon conversion is much lighter than the stock chassis and components it replaces. - 2.5mm carbon fiber bottom plate with 5mm carbon side rails for proper stiffness and strength. - Easy lipo access carbon lipo strap that also acts as a top plate. The lipo strap is fastened to the rear alloy brace and 2 alloys posts. - Alloy gear box brace is repositioned further back to allow improved rearward battery positioning. - Chassis allows easy switching between lateral mounted lipo and or inline mounted lipo. - Lipo strap has adjustable lipo holds to allow the battery to be shifted forward or back. - Machined 7075 alloy nose plate is used for durability and allows inexpensive chassis swaps should you chose to switch between the 7075 or carbon fiber lower chassis. - -2.5mm wheelbase for improved forward bite and rotation. - Includes machined delrin antenna mount. - Increased chassis 'footprint' allows more options for electronics placement. This also allows for proper weight balancing while maintaing a lower CG. - Carbon fiber components are specially made matte finish for improved scratch hiding and is just super trick looking! - Easily converts to the optional 7075 alloy chassis via #1527 EXO22 7075 REPLACEMENT CHASSIS. - Alloy fan mount- coming soon! - The wider than stock chassis requires the use of any body designed for the RB6 mid motor. A RB6 mid motor body provides ample battery clearance for a lateral mounted lipo, unlike any of the 22 bodies. Velcro is also required for body retention. ALSO REQUIRED; TLR 22 2.0 OR 22 SHORTY LIPO PACK RB6 MID MOTOR BODY, ANY BRAND. VELCRO FOR BODY RETENTION http://www.exotekracing.com
  13. U4788 - Mid Conversion - KF2 The world of 2WD Off Road is constantly on the move. With differing track surfaces, high, medium and low grip, the nature of a 2WD Off Roader can never stand still for too long! Schumacher Engineers have once again been working hard to provide the best package and are pleased to bring a Mid Motor Conversion for the popular Cougar KF2. The Mid Motor Conversion means that racing on low and medium traction conditions such as dirt and sandy/dusty astro just got easier. The conversion moves the motor cluster back by 19mm and puts the lipo in front of the motor. The included carbon fibre chassis accepts all motor positions, Standard, Low grip and Mid as well as all lipo layouts. The shift gives the KF2 more rear traction and allows the power to be transmitted easier into forward bite and acceleration. The chassis accepts normal height shorty lipos, to maximise traction on very low grip conditions a low profile lipo could be used such as the Intellect IPCC2S3500V9 or the LCG NOSRAM NR999523. Please note that the body requires a small modification to clear the spur and side gear cover or a modified body is available, part U5133. Spare Parts U5133 - Bodyshell KF2 Mid - Clear U4795 - C/F Chassis Mid Conversion KF2 - 2.5mm U4796 - Bando Belt 74T - Mid Conversion - KF2 U4797 - C/F Parts Mid Conversion - KF2
  14. http://kimihiko-yano.jp
  15. 1/10th scale oval and road racers... Time to put your rubbers on! Team CRC releases the new GTR wheel for CRC's new RT1 rubber tire. GTR wheel also fits TCS and Pit Shimizu tires! RT1 tires fit Formula 1 perfect, same mounting as Shimizu and TCS! 1/10th Oval, Legends and Road racers, think about this.... Running one season on the same set of tires. No truing, rounding and grinding, bolt on and race. Ride height staying the same for the season. No change in gearing because of tire wear. Fixed gear-ratio classes with no tire size issues. No chunked tires for the season. Awesome SCALE looks, appearance and performance. The new GTR wheels This is all possible with the new GTR wheels from CRC. These new wheels are designed for rubber tire 1/10th scale pan car racing, both oval and road. They are direct bolt on for 1/10th cars. In the rear, they use the standard 4 bolt mounting pattern commonly used in oval and World GT. In the front, they use the normal 1/8 x 5/16" bearing, again very common among the 1/10th oval and World GT cars. The mounted tires measure around 2.45" diameter, most all pan cars can be adjusted to make the proposed 5mm ride height rule. These rims are designed to mount the best performing tires on the market; the Pit Shimizu, Tamiya TCS and CRC RT1. The rims are designed for 2 types of scale looks; low profile (sidewall) GT type cars and large sidewall NASCAR and F1 scale looks. Standard offset makes it easy to mount and go! The new RT1 tire - For F1 and 1/10th scale These new tires are RACE PROVEN to provide great grip on carpet and asphalt. The tires have many months of testing and provide excellent grip and handling on both low-traction asphalt and high grip carpet. Under normal conditions, the tires show very little wear and no lap time degradation. The first run on these tires is no faster than the 30th run. The tires respond very well to all the popular additives. Dual scale looks - the tires can be mounted in both NASCAR/F1 style with a larger sidewall or GT style with low profile sidewalls. The tires come with inserts and measure 2.45" in diameter. Fit CRC GTR rims and Tamiya foam rims. Scale looks and performance - CRC GTR wheels + RT1 rubber tires CRC RT1 tires - Perfect combination for Formula 1 CRC RT1 tires mount in the same style as the most popular F1 tires; the Pit Shimizu (0571+0572) and Tamiya TCS. Our new RT1 tire performs brilliant with great grip and stability on carpet and asphalt. Coming soon from CRC; F1 rims and PRE-MOUNTED RT1 tires. GT style low profile or F1/ NASCAR large sidewall appearance. Available: 9-1-15 2310 GTR wheels for rubber tires-4 - Black 2311 RT1 Front rubber tires w/insert (pair) 2312 RT1 Rear rubber tires w/insert (pair) Available: Fall 2015 2314 Mounted RT1 Front tires on GTR 1/10th wheels 2316 Mounted RT1 Rear tires on GTR 1/10th wheels 2320 Mounted RT1 Front tires on F1 rims 2322 Mounted RT1 Rear tires on F1 rims www.teamcrc.com
  16. Petit préambule: oubli regrettable de ma part, ces photos prises début 2011 d'un Schumacher Cougar n'ont jamais fait l'objet de l'article qu'il méritait sur ce site. Désolé donc à son propriétaire pour cette omission involontaire, mais l'erreur est maintenant réparée! Le Cougar premier du nom, sorti en 1990, est l'évolution du TopCat de 1988, le premier vrai tout-terrain deux roues motrices de la célèbre marque de Northampton. Schumacher avait fait le choix de se démarquer des productions américaines ou japonaises de l'époque par des choix techniques osés et beaucoup de bonnes idées, comme une transmission par courroie, un châssis en aluminium embouti plat (qui valut à cette auto le surnom affectueux de "poële à frire") et surtout des amortisseurs avants en position couchée, "in-board". Le Cougar en reprendra deux années plus tard les grandes lignes, avec toutefois l'abandon de cette position originale des amortisseurs, plus disait-on à l'époque pour des raisons commerciales que techniques, le marché américain étant semble-t-il rétissent à cette implantation. Quoiqu'il en soit, l'auto eu une très belle carrière en compétition et commerciale, puisque déclinée dans de nombreuses versions (Cougar 2 version Sport, Racing et Team en 1991; Club 10, une version économique et orientée loisir en 1992; Cougar 2 Works en 1992) avant d'être remplacée par le Cougar 2000, très différent, en 1993. Ainsi, encore à la date de l'écriture de cet article, les productions Schumacher en tout-terrain deux roues motrices électriques portent toujours le nom "Cougar". La version présentée en photos ci-dessous semble sensiblement d'origine, hormis la présence d'amortisseurs d'origine Team Associated, ceux d'origine étant... perfectibles dirons-nous. Pour les passionnés des tous-terrains deux roues motrices de la marque, signalons également qu'un Cougar II avec un châssis en carbone Eurocomposite avaient déjà l'objet d'un reportage sur ce même site il y a quelques temps déjà. http://www.overrc.com/vintage/autos/schumachercougar/schumachercougar.html
  17. JConcepts – 3-Gear Aluminum Motor Plate Having available option parts for a popular vehicle makes the hobby more fun and interesting. JConcepts has rolled out a sweet looking replacement motor plate for the popular 3-gear transmission available for the B5M, T5M and SC5M vehicles. With the evolution of race tracks, high flying jumps are becoming the normal obstacle. It’s inevitable that a driver will have a miscue and challenge the rear-end durability of the vehicle. Your racing friends over at JConcepts have taken a lot into consideration while designing and developing a replacement motor plate. Looking at the typical construction of the second operation processes on standard motor plates, it is easy to see why bending is sometimes an issue. The design team at JC have incorporated a honeycomb milling affect with placement more suited to surrounding geometry making the plate lightweight and very rigid in multiple directions. The honeycomb features add a 3D look especially as they remain natural aluminum while the rest is available black or blue in color. Slight chamfering on the 3mm thickness material allows the rather beefy plate to look quite skinny. Honeycomb it out with JConcepts. Features: · Precision machined aluminum · Direct fit for 3-gear transmission · Lightweight / durable honeycomb milling · 3mm thickness material · Chamfer highlight edging · Available in blue and black colors · Aesthetic jewelry JConcepts – B5M, T5M, SC5M, 3-gear transmission, aluminum rear motor plate – honeycomb – blue Part# 2428-1 (Fits – Team Associated B5M, T5M, SC5M) JConcepts – B5M, T5M, SC5M, 3-gear transmission, aluminum rear motor plate – honeycomb – black Part# 2428-2 (Fits – Team Associated B5M, T5M, SC5M)
  18. May 14, 2015 ROAR is introducing a rules change with immediate effect that results in 2 different wheel configurations being available as options for manufacturers and competitors: - the existing 2.2" nominal wheels - the newer 2.4" or 61mm nominal wheels The new rules do not include dimensions compatible with vintage style wheels as they are generally not used in ROAR sanctioned competition. Dimensions for the traditional 2.2" wheel will be: - Mounting Bead Diameter - 2.20 inch (55.88mm) +/-.013 inch (.30mm) - Maximum Overall Diameter - 2.42 inch (61.468 mm) - Width - 1.513 inch (38.43mm) maximum Dimensions for the newer wheel style will be: - Mounting Bead Diameter - 2.380 - 2.427 inch (60.45 - 61.65 mm) - Maximum Overall Diameter - 2.571 inch (65.3 mm) - Width - 1.513 inch (38.43mm) maximum
  19. JConcepts – Reflex – 60mm 1/10th Buggy Tires The Reflex tire is designed to bridge a gap between the popular Double Dees and other options such as 3Ds and Hybrids. The Reflex has square, angled pins that are stacked vertically to flex and fold evenly across the tire. Typically a stacked tread will wear less and provide more forward bite while the aligned space helps rotation in the turns and gives a snappy release to square up quickly. Starting with the new tread, the team focused on durability and performance to bring a rear tire option to market that competes on loose surfaces which are wet or dusty. With the popularity of mid-motor buggies and the focus on steering and corner speed, the Reflex releases and bites hard during corner exit for straight line acceleration. The blended tread to tire body is supported with a generous radius which promotes “pin snap” and also resists tearing or separation. Horizontal traction bars connect several pins near the center of the tire which bonds a critical area for increased push at high-speed. The sidewall area blends nicely into a step-spike feature which helps smooth the transition in bumpy sections and also create side-bite. The Reflex are built on the 60mm bead and carcass design making them interchangeable with all 60mm | 2.4” wheel combinations. The interior ribbing features the double-hatch pattern that helps maintain a comfy ride while each set of tires includes the Dirt-Tech closed cell inserts. Features: · JConcepts original tread, available in multiple compounds · Square, angled pins with horizontal traction bars · 60mm | 2.4” bead mounting size · Carefully shaped carcass = smooth driving characteristics · Includes Dirt-Tech closed cell inserts Reflex – blue compound (fits 60mm 1/10th buggy rear wheel) Part # – 3118-01 (fits 60mm 1/10th buggy rear wheel) Reflex – green compound (fits 60mm 1/10th buggy rear wheel) Part # – 3118-02 (fits 60mm 1/10th buggy rear wheel) Reflex – black compound (fits 60mm 1/10th buggy rear wheel) Part # – 3118-07 (fits 60mm 1/10th buggy rear wheel) Reflex – blue compound (fits 60mm 1/10th 2wd buggy front wheel) Part # – 3119-01 (fits 60mm 1/10th 2wd buggy front wheel) Reflex – green compound (fits 60mm 1/10th 2wd buggy front wheel) Part # – 3119-02 (fits 60mm 1/10th 2wd buggy front wheel) Reflex – black compound (fits 60mm 1/10th 2wd buggy front wheel) Part # – 3119-07 (fits 60mm 1/10th 2wd buggy front wheel) Reflex – blue compound (fits 60mm 1/10th 4wd buggy front wheel) Part # – 3120-01 (fits 60mm 1/10th 4wd buggy front wheel) Reflex – green compound (fits 60mm 1/10th 4wd buggy front wheel) Part # – 3120-02 (fits 60mm 1/10th 4wd buggy front wheel) Reflex – black compound (fits 60mm 1/10th 4wd buggy front wheel) Part # – 3120-07 (fits 60mm 1/10th 4wd buggy front wheel)