The Thule 528001 – Sprint Fork Mount Carrier combines easy installation, convenience with patented assurance technologies, making it the most complete fork mount carrier on the market. The Thule 528 – Sprint fits Thule AeroBlade, square bars, round bars and most factory racks using Tool-free installation with Thule’s Speed-Link mounting system. Carries one bike with wheelbase up to 48 inches and tire width up to 2.6 inches. Lock Cylinders not included. Two (2) Thule One Key Lock Cylinders needed per carrier.