HPI Bullet MT Universal Driveshaft Set Black Steel BUL-18012-BK, Front and Rear by Jazrider  [BUL-18012-BK]

Replacement universal drive shafts for Bullet MT rigs

This RC replacement drive shaft set is made for HPI Bullet MT models and is supplied as a 2-piece set labeled BUL-18012-BK. The items are produced in black steel to serve as direct front and rear universal shaft replacements on the Bullet MT chassis, aimed at maintenance and reinforcement for off-road driving.

Fitting requires removal of the existing universal shafts, seating the new shafts into the original coupling locations, and securing retaining screws while keeping alignment correct. Check related components such as hex adapters and wheel hub surfaces before installation to ensure clean mating and to prevent binding.

For tuning and service, installing robust black steel shafts is a practical method to recover drivetrain performance after wear and to provide a consistent mating surface for further upgrades. After installation, verify smooth rotation across suspension travel and confirm there is no unusual play at the joints.