Shimano 105 FC-RS520 12 Speed Crankset Chainring:50/34 rim width and road conditions

rim width and road conditions

all additions to the base SemiPro will generate a far more prolific impact to the cyclist

2 x EPDM mounting o-rings (small)

it’s discreet

The Science of Speed: Shimano 2x12-speed Crank FC-RS520

Shimano 105 FC-RS520 12 Speed Crankset Chainring:50/34 rim width and road conditionsThe elegant shape and the chic finish round off the overall high quality impression of this Shimano FC RS520 2 x 12 speed 2 PIECE crankset. Matches the new 105 Di2 R7100 group. Features The Science of Speed: Shimano 2x12 speed Crank FC RS520 The next generation: Shimano 105 featuring Di2 draws on the design philosophy The Science of Speed bringing fresh momentum, comfort and control. It lets you embrace an open road, full of infinite possibilities. Go