The XRAY 362370 composite inline hub gives racers a simple way to refine rear gear geometry on XB4'21 cars. By changing the inline hub position you can correct bevel gear alignment and alter rear-end behaviour under power.
Specifically manufactured for the XB4'21 rear HS bulkhead, this composite hub delivers six distinct height options to shift the bevel drive over a 5mm range. That flexibility helps tune traction balance and reduce drivetrain strain.
Ideal for drivers who swap between different surfaces, the hub is matched to the XRAY XB4'21 series and is useful when testing ride height, anti-squat and cornering response for race setup work.
Copyright © 2008-2025 rcjaz.co.nz All rights reserved