HPI Bullet 3.0 Front and Rear Adjustable Alloy Dampers BMT3100F/R by GPM  [BMT3100F/R]

Adjustable front and rear shocks for Bullet 3.0

The BMT3100F/R is an aluminium-bodied adjustable spring damper set designed for HPI Bullet 3.0 MT and ST nitro chassis. Supplied as one pair, these shocks use a 3.5mm steel shaft combined with an aluminium alloy body to give improved durability over stock plastic units while maintaining suitable mass for model-scale suspension.

Functionally the dampers offer adjustable spring support for tuning ride height and preload at both front and rear corners. The parts are produced to match the Bullet 3.0 MT and ST mounting points and stroke, allowing direct replacement of original dampers without modifying chassis mounting locations.

When setting up, try changes to spring rate and preload before altering pistons or oil; the alloy body and steel shaft prioritise strength and shaft straightness, while shock oil and piston selection control compression and rebound. Use standard RC tools for removal and installation, check thread engagement and pivot points, and verify smooth shaft travel prior to running.

This damper set suits hobbyists seeking a metal-bodied, thicker-shaft replacement for HPI Bullet 3.0 MT/ST nitro models where improved durability and consistent shaft straightness help during suspension setup.