This 2pcs alloy hex adapter is an RC-scale wheel mounting part designed for use with the TAMIYA TT02B platform. It provides a direct interface between hub hardware and aftermarket wheels that accept a 12x9mm hex, keeping installation straightforward on TT02B-compatible kits.
The adapters are described as alloy, and they function as wheel hex carriers rather than bearings or drive components. In practice they locate the wheel on the axle stub, transmit rotational force from the drive system to the wheel, and serve as a reference for wheel offset during setup.
Installation notes: these adapters replace or fit onto the existing hub/axle arrangement on TT02B chassis types that use a 12x9mm hex pattern, they mount in pairs, and typical assembly requires matching the adapter to the hub and securing with the original wheel nut or retaining hardware. Verify fit before final tightening and check wheel runout after installation to confirm alignment.
On tuning: use these adapters when changing wheel types, adjusting track width, or testing different offsets, they simplify wheel swaps and support consistent wheel positioning during setup work, while remaining a small-scale RC component rather than a vehicle-grade part.
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