TP Developments Parts & Accessories

TP Developments do one thing — tappets for Harley engines — and the narrow focus shows in the work. The lifters are precision-made for serious top-end and bottom-end rebuilds where everything else has been spec'd properly and the valvetrain shouldn't be the weak link.

Quietly popular with European specialist workshops doing high-mileage and tuned motor work. If you've already invested in good cams, valves, and machining, fitting cheap lifters is a false economy this catalogue exists to solve.