HPI Bullet orange alloy front knuckle arms by JAZRIDER BUL-18000-OR  [BUL-18000-OR]

Front knuckle arms overview

This JAZRIDER BUL-18000-OR part is an RC-scale orange alloy front knuckle arm set intended for HPI Bullet applications. It replaces or upgrades the front steering knuckles to provide a firmer mounting point compared with typical stock plastic components, helping to reduce flex under load and maintain steering geometry during aggressive use.

Design and role: the alloy construction focuses on dimensional stability and wear resistance at the steering pivot and linkage locations. On-track, these knuckles act as a tuning item to tighten steering feel and to give repeatable suspension geometry when swapping different tyres, shocks, or camber settings.

Fitment and installation notes: this item is listed for use with BULLET 3.0 MT and ST models. Confirm existing hardware and bearing arrangements before installation, transfer any sealed bearings as required, and verify alignment during reassembly. Replace worn fasteners and check for proper clearance through full suspension travel after fitting.

Maintenance and service: inspect mating surfaces and ball-socket interfaces periodically for play or wear, keep pivot points clean of grit, and address any impact damage by replacing affected parts to preserve predictable steering response. As with all RC accessories, use correct replacement fasteners and avoid over-tightening to prevent stress concentrations.