Yokomo B-MAX4 Chassis Carbon Fibre Plate by Arrowmax AM-MAX4-011  [AM-MAX4-011]

Chassis Plate for Yokomo B-MAX4

This Arrowmax AM-MAX4-011 chassis plate is a direct-replace carbon fibre component designed for the Yokomo B-MAX4 III platform, intended to change chassis flex and thermal behaviour for specific track conditions. The plate uses Arrowmax's Q-Grade multi-directional carbon fibre to provide higher transverse stiffness compared with many other carbon plates while keeping overall mass low.

Key measurable changes compared with the stock plate include a reported reduction in mass from about 127g to roughly 66g, and a different flex profile aimed at increased mid-to-low bite compliance. A honeycomb-patterned cooling area is formed beneath the motor pocket to improve airflow across the motor and help reduce operating temperatures during extended runs.

Installation is described as direct-replace, which keeps factory mounting points and fastener locations for the B-MAX4 III chassis layout. When fitting, check fastener torque and clearances around the motor pocket and electronics to retain intended airflow through the honeycomb openings. The plate alters chassis tuning by introducing a combination of reduced weight and a tuned transverse stiffness that suits lower-grip surfaces or setups that need additional controllable flex.

For builders focused on low-bite tracks or who want a lighter, differently tuned carbon plate for the B-MAX4 III, the AM-MAX4-011 presents a focused option: multi-directional carbon for transverse stiffness plus a motor-area honeycomb to assist cooling, with a direct-replace fit to preserve existing mounting geometry.