Tamiya 94603 Aluminium Side Extension Roller Mount for Mini 4WD Racers  [94603]

Tamiya 94603 Side Extension Roller Mount in Aluminium for Better Balance

The Tamiya 94603 Aluminium Side Extension Roller Mount is a useful upgrade for Mini 4WD hobbyists seeking steadier cornering and repeatable lap times. By widening the chassis to about 104mm, it gives a broader footprint that helps stabilise the car through fast turns. Made from aluminium, the part combines strength with a modest weight increase.

Which Chassis It Fits and Installation Notes

This roller mount fits directly on Mini 4WD PRO, Mini 4WD VS, Super X, and Super TZ-X chassis. For Super-TZ and Super1 chassis, you should add ITEM 15242 to complete the installation. That makes the Tamiya 94603 a flexible option for racers using several chassis types.

What You Gain on Track

Broadening the chassis footprint improves lateral control and reduces unpredictable shifts during corner entry and exit. That stability helps when pushing for lap consistency in club races and practice sessions.