Yokomo B-MAX4 Front Axle Shaft Pair by Arrowmax AM-010021 Lightweight Option  [AM-010021]

Performance front axle shafts for B-MAX4 touring cars

The Arrowmax AM-010021 front drive shaft set is made as a direct replacement for the Yokomo B-MAX4 chassis and comes as two shafts for the left and right front. This lightweight option aims to cut rotating mass in the front drivetrain, improving responsiveness during throttle application and directional transitions on 1/10 on-road rigs.

Installation is straightforward and follows common front-shaft procedures: remove the wheel and hub, extract the original shaft from the gearbox and knuckle assembly, then fit the replacement while checking spline engagement and endplay. Tighten fasteners to spec and confirm the shafts rotate freely through the steering arc. No special trimming or geometry changes are required with stock B-MAX4 front hardware.

Tuning and care advice: lowering rotating mass at the nose reduces inertia and can sharpen throttle response, which helps when balancing traction and steering feel. Inspect splines and contact points routinely, and swap the pair if you notice slack or visible wear to keep handling consistent.

Chassis Compatibility

• Yokomo B-MAX4

Use these matched shafts for scheduled maintenance or when you want a lighter front end while experimenting with on-road setup changes on B-MAX4-based cars.