105 CS-R7101 12 Spd. Calipers Compatible with most 512 speed

Compatible with most 512 speed cassettes and freewheels

Wilson's Tour Collection encompasses sharp design

and CX5 disc brake systems

Safely eliminates drive chain contaminants

Muc-Off Biodegradable Bike Cleaner has an incredibly effective cleaning formula containing 'Nano Technology' that also cares for your bike's delicate finishes

105 CS-R7101 12 Spd. Calipers Compatible with most 512 speedA 12 speed cassette range that brings versatility to any rider or road From sprinting on the flats to climbing steep inclines, the 11 34T cassette has you covered. It is compatible with both SHIMANO 11 speed and 12 speed FREEHUB bodies. FEATURES: Refined 12 step gear combination provides peak efficiency and accelerating performance for every situationCompatible with new 12 speed and road 11 speed FREEHUB body Product Specifications: MODEL NO CS R7101