Zipp SP BOLT/CLAMP KIT SVC CRS SL CZipp SP BOLT CLAMP KIT SVC CRS SL C The Zipp SP BOLT CLAMP KIT SVC CRS SL C brings the performance and reliability Zipp is known for, engineered for riders who want dependable gear that stands up to real world use. SEATPOST BOLTS, NUTS, UPPER AND LOWER CLAMP SERVICE COURSE S. Built to Zipp's exacting standards, it's a practical upgrade whether you're heading out for a training ride, a weekend adventure, or the next race. The Zipp SP BOLT CLAMP KIT SVC