Shimano Dura Ace SS-7600 Track Sprocket Crankset Diameter 27

Diameter 27

Wear it under you helmet to keep the sun out of your eyes and the sweat off your face

Mark  XS S M L XL S1 480 520 550 580 600 S 440 580 510 540 560 T1 520 545 564 591 611 T 507 531 552 577 596 Head Tube 80 110 135 160 185 a° 70 71 71 71

Folding Bead

CS-M8100 Deore XT -11 Speed MTB Cassette (42T Max Low Sprocket)

Shimano Dura Ace SS-7600 Track Sprocket Crankset Diameter 27The Shimano Dura Ace 7600 Track Cog comes in four options in teeth count ranging between 13T and 16T in chain widths of either 1 2" X 1 8" (most common width) or 1 2" X 3 32". They are CNC machined to ensure a reliable chain line, limiting unwanted tension on the chain. Their chromoly construction gives an additional level of durability so that you wont be wearing either your sprocket or your chain too hard even after months of power training.