Yeah Racing Aluminum Endurance Conversion Kit For HPI Sprint 2 Orange #SPT2-S02OR (SPT2-008OR) Aluminum Front Damper Stay For HPI Sprint 2 (1pc) (SPT2-009OR) Aluminum Rear Damper Stay For HPI Sprint 2 (1pc) (SPT2-013OR) Aluminum Ball Bearing Hub For HPI Sprint 2 (1pc) (SPT2-024OR) Aluminum Battery Post For HPI Sprint 2 (1pc) (SPT2-027OR) Aluminum Front / Rear Bulkhead For HPI Sprint 2 (2pcs), (SPT2-038OR) Belt Tensioner with Aluminum Wheel For HPI Sprint 2 (1pc)