Shimano 105 FC-RS520 12 Speed Crankset BPW 5mm with length shim /

5mm with length shim / 45

and also keeps your internal wires and hoses from rubbing on the crank spindle

and G Series bar

Standard / +4mm

reduced weight and outstanding reliability

Shimano 105 FC-RS520 12 Speed Crankset BPW 5mm with length shim /The 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