Yokomo B-MAX4 Mid Shaft Lightweight Pair for Track Tuning - Arrowmax AM-010022  [AM-010022]

Mid-Section Drive Shafts for B-MAX4

This Arrowmax AM-010022 mid drive shaft set provides a direct replacement option for the Yokomo B-MAX4 chassis, engineered to trim rotating mass while preserving the stock mid-gear geometry. The parts are RC-scale and intended for straightforward swap-in installation.

The unit emphasises consistent handling and easy setup changes at the track. Tuners will find the reduced inertia useful when adjusting throttle mapping, gear ratios, or differential settings to sharpen transient response.

Installation guidance: these shafts install in the mid-gear area in place of the OEM parts and require standard gearbox or mid-section disassembly per the chassis instructions; confirm alignment and clearance after fitting and ensure driveshaft ends properly engage existing dogbones or couplers. No chassis modification is necessary for typical B-MAX4 arrangements.

For racers and hobbyists running the B-MAX4, Arrowmax AM-010022 mid shafts are a compact upgrade to reduce rotating mass and help fine-tune drivetrain behaviour without changing chassis geometry.