Yokomo B-MAX4 III Tunable Carbon Chassis Plate - Arrowmax AM-MAX4-011  [AM-MAX4-011]

Carbon Replacement Plate for B-MAX4 III

The Arrowmax AM-MAX4-011 is a direct-replace carbon fibre chassis plate made to suit the Yokomo B-MAX4 III, intended to modify chassis flex and thermal response for specific racing conditions. The plate uses Arrowmax Q-Grade multi-directional carbon to deliver higher transverse stiffness compared with many standard carbon plates while maintaining a low overall mass.

Key measurable differences from the stock plate include a reported mass reduction from about 127g to approximately 66g and a tuned flex profile that favours mid-to-low bite compliance. A honeycomb-patterned recess beneath the motor pocket improves airflow under the motor to help control operating temperatures during longer sessions.

Fitment is direct-replace, preserving factory mounting points and fastener positions for the B-MAX4 III layout. During installation, check screw torque and ensure clearances around the motor pocket and electronics so airflow through the honeycomb openings remains effective. The plate alters chassis tuning by pairing lower mass with targeted transverse stiffness, making it well suited to lower-grip tracks or setups requiring additional controlled flex.

Builders seeking a lighter, differently tuned carbon base for the B-MAX4 III will find the AM-MAX4-011 focuses transverse stiffness where needed and adds a motor-area honeycomb to assist cooling, while keeping original mounting geometry intact.