The Tamiya 15432 JR Super Speed Gear Set is aimed at Mini 4WD builders who want reliable speed upgrades. It works with common Tamiya chassis platforms including Super X, Super XX, Super-II, Super TZ, Super TZ-X and VS, offering broad compatibility.
This set uses a 3.5:1 gear ratio to provide a compromise between rapid acceleration and steady top speed. It ships with two shaft variations so you can install it across different chassis layouts without custom machining.
Use the gear set to tune your model by pairing it with suitable motors, tyres and weight placement. Its cross-chassis fitment encourages experimentation with different setups for various track profiles.
Installation is designed to be simple and reproducible for club racers and hobbyists alike. The components sit securely in place in compatible chassis, meaning minimal extra tweaks are usually needed.
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