Tamiya 15132 3:5:1 Race Ratio Gears  [15132]

Race-Focused Tamiya 15132 Special Ratio Gearing

The Tamiya 15132 Special Ratio Gearing is aimed at Mini 4WD racers seeking more top speed through a 3:5:1 gear configuration. It is suitable for Type 5, Zero and Super 1 chassis and performs best when used with smaller diameter tyres found on Fully Cowled Mini 4WD bodies.

These gears were part of Tamiya's Grade Up Option Parts line and have been reissued for tuners who want reliable performance parts. The kit supports adjusting the drivetrain toward a 3.5:1 ratio from a stock 4:1 depending on track demands, and it is also usable on Super FM and Super TZ platforms for flexible tuning choices.