Mini 4WD Setting Board: Measure Before You Tune
A Mini 4WD setting board records roller height, brake height and width so a setup is repeatable. What to measure, the 90 g box, and why HG boards stay off-car.
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Tamiya FRP Rear Multi Roller Setting Stay(15430)
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Description
This FRP (fiber-reinforced plastic) stay mounts at the rear of the chassis and provides several hole positions for fitting 9mm, 13mm, or 19mm rollers in wide settings, letting a builder widen the rear roller stance for cornering stability. Additional holes on the plate accept mass dampers and brake parts, so the same stay can carry both rollers and braking or damping hardware at the back of the machine.
Unlike the front-mounting FRP Multi Roller Setting Stay, this rear version's listed compatibility is narrower, spanning FM-A through the current ME chassis, since it has to match the rear body-mount pattern of that specific run of chassis rather than the near-universal front mounting point. That narrower fitment is effectively the trade-off for gaining the extra mass-damper and brake holes the front stay doesn't have.
- Material: FRP
- Roller compatibility: 9mm / 13mm / 19mm, wide-position mounting
- Extra holes for mass dampers and brake parts
- Listed chassis compatibility: FM-A, Super-II, Super X, Super XX, Super TZ-X, VS, MS, AR, MA, VZ, ME
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Mini 4WD Brake Sponge Hardness and Stay Angle
Mini 4WD brake sponge hardness and stay angle are two separate settings. Compare friction grade against mounting angle so the car slows safely and consistently.
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.