HPI Bullet 3.0 MT/ST Alloy Hex Adapter 12x9mm BMT010/12X9 by GPM  [BMT010/12X9]

Technical overview for HPI Bullet 3.0 hex adapters

The BMT010/12X9 is a four-piece alloy hex adapter set engineered to adapt HPI Bullet 3.0 MT and ST nitro wheel hubs to accept GPM EXO wheels Ex0503Front and Ex1003Front. Each adapter presents a 12mm outer hex and 9mm thickness to match wheel mounting geometry while preserving correct track offset.

Designed for stable mechanical coupling, the adapters replace or extend the factory hex to ensure consistent wheel positioning and clearance on nitro platforms. The alloy construction focuses on dimensional stability under typical RC loads and preserves secure engagement between hub and wheel.

Assembly guidance: verify wheel bore and hub mating surfaces are clean, align adapter orientation to the chosen EXO wheel, confirm thread engagement and suspension/body clearance, and recheck fasteners after an initial test run. The component is supplied as a 4pcs set to cover required mounting positions.