105 FC-RS520 Crankset Crank Length (mm):165 and the canvas upper is

and the canvas upper is durable and flexible

giving you an extra 22oz of water storage – the same size as a small water bottle – hidden in your downtube

Wide and flat grip elastic at thighs to keep short in place

Triple Density Body Geometry Contour 3D Chamois

The cushioned midsole provides long-lasting comfort

105 FC-RS520 Crankset Crank Length (mm):165 and the canvas upper isThe Shimano 105 FC RS520 is a 2 piece, 4 arm crank that's compatible with modern disc brake road frames. 4 arm crankset for 12 speed drivetrain Compatible with frames of O. L. D. 135mm and 410mm chainstay length 44. 5mm chainline 150mm Q factor Compatible with HG 12 speed chains