Yokomo B-MAX4 Mid Drive Shaft Lightweight Upgrade - Arrowmax AM-010022  [AM-010022]

Lightweight Mid Drive Shaft for B-MAX4

This Arrowmax AM-010022 mid drive shaft set is an RC-scale replacement intended for use with the Yokomo B-MAX4 chassis. The package is a lightweight mid-shaft option built to reduce rotating mass compared with stock components while maintaining the geometry needed for standard B-MAX4 drivetrains.

The design focuses on predictable on-track behaviour and straightforward fitment in the B-MAX4 mid-gear area. The set works as a direct upgrade or spare during maintenance, setup changes, or drivetrain tuning where lower inertia at the driveshaft helps refine throttle response and transient handling.

Installation notes: the shafts replace the original mid drive components and require routine disassembly of the gearbox or mid-section following the chassis manual; check alignment and clearance after fitting and verify that driveshaft interfaces mate correctly with existing dogbones or couplers. No special modifications are required for standard B-MAX4 layouts.

For club racers and setup-minded tuners running the B-MAX4 chassis, the Arrowmax AM-010022 mid drive shaft set is a compact upgrade to reduce rotating mass and support finer drivetrain tuning without altering the chassis layout.