Tamiya 15429 JR High Speed EX Gear Set for MS Chassis 3.7:1 - Mid-speed tuning option  [15429]

Quick look at the Tamiya 15429 JR High Speed EX Gear Set

This Tamiya 15429 JR High Speed EX Gear Set targets Mini 4WD hobbyists who want finer control over MS chassis performance. With a 3.7:1 gear ratio it sits between common 4:1 and 3.5:1 options, giving a balanced mix of acceleration and top speed suitable for many circuit types.

MS chassis fit and practical advantages

Made to work with MS chassis platforms, the gear set helps you tailor gearing without major alterations. The MS chassis design supports quick swaps and upgrades, and the 3.7:1 ratio lets racers dial in handling for varied cornering and straight sections.

Setup tips for race and practice

Choosing the 3.7:1 ratio expands tuning choices for mid-speed tracks where pure top-speed or low-end torque are not ideal. Use this gear set when you want steadier corner exit and reduced wheelspin on technical layouts.