Mini 4WD 3-Lane Roller Setup Guide
Roller choice on a Tamiya 3-lane layout is about controlled wall contact. Heights, sizes and stagger that keep the car settled through tight bends.
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Browse available alternativesA 1.5mm carbon fiber reinforcing plate designed to mount 13mm and 19mm diameter rollers while keeping the finished car within official Mini 4WD width regulations, useful for cars that need larger rollers than their stock stays allow. The plate is printed in white with the Tamiya logo and roller size markings; cleaners should be avoided as they can damage this printed surface. Its chassis compatibility list is unusually broad, running from the original Type 3, Type 4, Type 5 and Zero Chassis through FM, FM-A, Super-1, Super-II, Super FM, Super TZ, Super X, Super XX, Super TZ-X, VS, MS, AR, MA, VZ and ME Chassis — covering essentially every Mini 4WD and Mini 4WD PRO chassis Tamiya has released. That makes it the widest-fitment plate in the HG Carbon Reinforcing Plate family, ahead of the current-chassis-only HG Carbon Reinforcing Plate Set (item 15495).
Roller choice on a Tamiya 3-lane layout is about controlled wall contact. Heights, sizes and stagger that keep the car settled through tight bends.
Five-lane layouts are faster and more open, so roller setup shifts toward stability at speed. Sizes, heights and damping that survive big sections.
Mini 4WD carbon stays and FRP plates solve different problems in B-MAX. Learn when to start with FRP, when carbon helps, and what to check first.