These GPM 7075-T6 aluminium hex adapters and wheel locks are engineered to move each wheel outward by 20mm, enhancing lateral stability and reducing unwanted wheel movement. The internal knurling helps maintain a secure interface with the hub while the extended wheel lock improves axial retention, making the assembly robust under driving loads. Specified for 17MM large tyres, the parts are intended as a durable upgrade to factory hexes and wheel locks.