HPI Bullet 3.0 MT and ST Rear Beadlock Upgrade BMT0503R+889 by GPM  [BMT0503R+889]

Precision beadlock rear wheel upgrade

Engineered as an aftermarket replacement for HPI Bullet 3.0 MT and ST nitro platforms, this kit pairs rubber tyres with CNC-style alloy 5-star beadlock rings and durable nylon rim frames, plus 12x9mm drive adapters for a direct axle interface. The design focuses on upgrade performance and long-term serviceability while preserving stock hub geometry.

Installation follows standard beadlock procedures: separate beadlock halves, seat the tyre on the nylon frame, align the alloy ring and torque the fasteners to specification. The 12x9mm adapters are sized to meet the rear axle stub dimensions used on HPI Bullet 3.0 MT and ST nitro variants, enabling secure mechanical engagement without machining.

From a setup standpoint the kit allows independent adjustment of rim stiffness and unsprung mass relative to tyre selection, aiding tuning for traction and handling. Materials and fitment are selected to deliver improved durability and repeatable assembly characteristics. by GPM

A precision-oriented wheel and tyre assembly intended as a direct-fit aftermarket upgrade for HPI Bullet 3.0 MT/ST nitro models, offering robust alloy beadlocks and matched drive adapters for improved serviceability.