Yokomo BM-S172A Dual-Hole 1.7mm X Piston for B-MAX Chassis  [BM-S172A]

Track Tuning with the BM-S172A Shock Piston

The Yokomo BM-S172A piston is aimed at enthusiasts who want precise shock behaviour on B-MAX cars. With two 1.7mm ports, it preserves consistent flow during both compression and rebound for repeatable handling laps after lap.

Balanced Response for B-MAX Vehicles

Built for B-MAX compatible platforms, the BM-S172A helps reduce unpredictable shock reactions across various models. It suits drivers who tweak damping to match grip levels without swapping major shock hardware.