The Genuine Kyle Racing Billet 30mm Offset Triple Clamps are specifically designed for Ducati 1098 1199 and 848 motorcycles with Showa fork or aftermarket Öhlins. Bore diameter is 53mm top and bottom . Made in the United States, this Triple Tree Set includes a lower tree clamp, upper tree clamp, steering stem, mounting hardware, and bearing. The 30mm offset design offers improved handling and stability, making it ideal for motorcycle enthusiasts looking to upgrade their front suspension system. Trust in the Kyle Racing brand for high-quality and reliable parts for your motorcycle.