The Yokomo RS-BTC Belt Tension Cams are resin parts that let you adjust drive belt slack on RS1.0 chassis. Using the cams in different fixed positions changes belt preload and helps manage how front and rear differentials interact under load.
Proper belt setting prevents slipping and reduces drag, keeping the car predictable through a sequence of corners. The RS-BTC cams are a straightforward way to get belts into the correct range without overcomplicating setup work.
Built for RS1.0 models such as RSR-010 and RSR-LFGT3RTR, the cams install using stock mounting points so you can upgrade quickly and return to track testing right away.
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