Shimano SF-1200 18t Bronze Freewheel bike accessories brand_duckflap EXCEPTIONAL AERODYNAMICSThe 3D structure and

EXCEPTIONAL AERODYNAMICSThe 3D structure and seam free sleeve finishing of SBR CHANNEL through shoulders and side panels provides exceptional aerodynamics and is ergonically engineered to fit to your body like a second skin

for 160mm rotor

The memory positioner allows you to replace your cleats without losing your exact foot position

60tpi nylon casing structure with an added layer of cut resistant fabric under the tread to provide superior puncture protection

Shimano SF-1200 18t Bronze Freewheel bike accessories brand_duckflap EXCEPTIONAL AERODYNAMICSThe 3D structure andShimano SF 1200 Freewheels 1 2" x 1 8" Chain compatible Cassette Body Type: Threaded Standard 1. 37" x 24tpi