Tamiya 15357 Side Roller Extension Kit - Mini 4WD PRO FRP Upgrade  [15357]

Overview - Tamiya 15357 FRP side extension for Mini 4WD

The Tamiya 15357 Mini 4WD PRO FRP Side Extension Roller Mount is designed to widen compatible Mini 4WD PRO MS chassis to about 104mm. This extra width improves lateral control in turns and helps maintain momentum on technical circuits, making it a solid option for racers refining handling.

Compatibility guide and assembly

The FRP side extension mount is suitable for several chassis families, such as:

• Direct Use: Mini 4WD PRO MS chassis, Mini 4WD VS, Super X, Super TZ-X
• With Item 15242 FRP Front Plate: Super-TZ, Super-1

Assembly is generally straightforward for the listed chassis. For Super-TZ and Super-1 you will need Item 15242 FRP Front Plate to adapt the extension correctly. The part allows riders to change roller configurations and match setups to different track styles.

Performance gains and setup advice

Widening the chassis gives better corner stability and reduces the tendency to lose speed in tight sections. The mount works with a range of rollers and complements tyre and damper upgrades to refine handling characteristics.