Shimano IFCR9100AX26 FC-R9100 Dura-Ace Crankset

The revolutionary four-arm spider and stiff Hollowglide chainring construction place the Shimano Dura-Ace 9100 compact crankset at a new industry standard with low weight and rigid build. Its new chainring tooth profile has been adapted to be compatible with race bike specific disc brake systems. The Dura-Ace 9100 features a 24mm steel spindle axle, plus a choice between press-fit and threaded bottom brackets.