Tamiya 95421 - 19mm 6-Spoke Aluminum Ball-Race Rollers, Precision Mini 4WD Upgrade  [95421]

Overview for racers

The Tamiya 95421 6-Spokes Aluminum Ball-Race Rollers are made for Mini 4WD hobbyists who want more consistent track performance. These 19mm rollers use ball bearings to lower rolling resistance and help stabilise speed through corners.

Build and operation

Machined aluminum bodies give strength while keeping weight reasonable. The rollers fit 520-size ball bearings to maintain smooth rotation and reduce friction, aiding steadier lap times under race conditions.

Fitment and mounting notes

These rollers work with Mini 4WD and Mini 4WD PRO chassis. Installation includes the supplied screws and spacers, but certain body shells may need slight trimming or adjustment for ideal clearance.