Yokomo B-MAX4 Brass Rear Mount 19g - AM-MAX4-010 by Arrowmax  [AM-MAX4-010]

Rear weight mount for B-MAX4 tuning

This rear mounting component is an upgrade for the Yokomo B-MAX4 chassis supplied by Arrowmax as AM-MAX4-010, made from brass with a nominal 19g mass. Its purpose is to alter weight distribution at the rear to change how the suspension reacts under load.

Install this mount when you want a predictable method to increase rear-end mass during setup comparisons. The added mass affects rotational inertia and transient rear response, which can assist in finding better balance on carpet or sealed asphalt circuits. The item is for scale model use only.

Fitment advice: mount to the rear suspension points on a Yokomo B-MAX4, check that thread size and fastener length match your chassis before tightening, and verify suspension travel after installation. Adjust one parameter at a time and note ride-height and roll changes for clear comparison.

This brass rear mount offers a straightforward, removable approach to experimenting with rear mass and handling on a Yokomo B-MAX4; use lap times and feel to judge any setup gains.