REQUIRES: HPI Nitro Star Engine

run to Formula One rules

The 75C version delivers up to a 150C burst rate

For steering linkage

Kyosho MZW416B-02 Mini-Z MR-03 Caster Arm Set for Inner Tube Shock RBX10 Ryft Parts REQUIRES: HPI Nitro Star EngineKyosho MZW416B 02 Mini Z MR 03 Caster Arm Set for Inner Tube Shock. Description: The Kyosho MZW416B 02 Caster Arm Set is designed for Mini Z MR 03 models equipped with the MZW416B Inner Tube Shock Set. These front suspension arms allow the caster angle to be adjusted, helping fine tune steering response and handling characteristics. The set includes left and right caster arms in 1 degree, 2 degree, and 3 degree configurations, providing multiple setup