HPI Bullet MT and ST 14mm Alloy Hex Adapter by GPM BST010/14X9  [BST010/14X9]

Hex adapter for HPI Bullet MT/ST

This 4pcs set of alloy hex adapters is produced by GPM for HPI Bullet MT and ST platforms and presents a compact option for replacing or upgrading wheel hex interfaces on scale electric models. Each adapter is described in the product name as 14mm diameter with 9mm thickness and finished in a fluorescent style, providing a consistent interface between the wheel hex and hub assembly.

Designed as an RC-scale accessory, the adapters act as the mechanical link that transmits wheel torque from the hub to the wheel, and their 9mm thickness changes the effective spacing at the mounting surface which can affect wheel offset and track width when used in a set. The alloy construction aims to balance rigidity and weight for typical electric 1/10 scale use.

Installation notes in practice: verify the adapter seats fully on the wheel hex and hub, ensure alignment with the wheel hardware, and confirm secure fastening before running the model. Use the set of 4pcs to maintain symmetry across all corners when adjusting wheel spacing or replacing worn hexes.