HPI Bullet 3.0 MT and ST Alloy Hex Adapter 14mm Diameter W/9mm Thickness by GPM BMT010/14X9  [BMT010/14X9]

Alloy hex adapter for Bullet 3.0 wheels

This is an RC-scale alloy hex adapter made for HPI Bullet 3.0 wheels, supplied as a set of 4 pcs. It provides a direct replacement hex interface used on MT and ST variants that retain the original Bullet 3.0 wheel design, offering a rigid connection between wheel and axle for routine track and bashing use.

The adapter is described by its core dimensions—14mm diameter with 9mm thickness—and is intended to match the original Bullet 3.0 wheel mounting surface. In use, it maintains wheel alignment and helps keep wheel runout consistent, which is useful when tuning handling or when swapping between tyre types on the same hub setup.

Installation is straightforward on RC models that use the original Bullet 3.0 wheel fitment: remove the stock hex, fit the alloy adapter onto the hub, and secure the wheel as usual. Because this is an aftermarket RC accessory, verify fit on your specific Bullet 3.0 wheel before extended running; minor trimming of hub surfaces is not recommended unless you confirm clearance and fitment on the model.