Front Shock Spring for BMax4 — Hard 1260 Purple by Yokomo YOKBMS1260  [YOKBMS1260]

BMax4 front spring details

The Yokomo YOKBMS1260 is an RC front coil spring made for BMax4 front dampers, finished in a hard purple 1260 rate. It offers a straightforward way to increase front roll stiffness and adjust pitch balance on 1/10 touring electric models without changing shock bodies or pistons.

Fitting follows standard coil-over practice — remove the shock cap, compress the shaft, slide the spring over the shaft, seat it against the retainer and reassemble. Fit identical springs on both sides to keep handling balanced, and confirm the spring seats cleanly to prevent binding on the shock shaft.

Tuning advice: a harder front spring like this raises front roll resistance and cuts dive under braking, typically shifting the car toward understeer. Counter with different shock oils, bleed rates, or softer rear springs, and make small changes while testing on consistent track surfaces.