FSA - ACR CONE SPACERS / TOP COVERS Option:ACR Top Cover - Suits Cervelo Caledonia & FSA/Vision ACR Stems | FS160-0173000110 support and durability to match

support and durability to match the intended use of each individual saddle

When installed on Zipp butyl tubes with 37mm valves

you can keep your tires out of the landfill for longer

Master the challenges of modern cross-country and down-country riding at speed

FSA - ACR CONE SPACERS / TOP COVERS Option:ACR Top Cover - Suits Cervelo Caledonia & FSA/Vision ACR Stems | FS160-0173000110 support and durability to matchBike model specific top covers to be used with FSA's ACR system for fully integrated cable routing. Provides a seamless transition from your ACR stem to the frame. Lead times for Special Order versions can vary, but are typically 4 6 weeks.