Series SLX
Crank Construction HOLLOWTECH II
Cassette Compatibility 9-speed
Chain Compatibility Super Narrow HG for 9-speed
4-Arm Chainrings yes
Cahainring Sizes 44-32-22T/48-36-26T
Bolt Circle Diameter 104/64mm
Crank Arm Length 170/175mm
Crank Arms forged aluminum / hollow type
Outer Chainring aluminum
Middle Chainring steel + composite (32T), aluminum (36T)
Inner Chainring steel
Chainring Bolts & Nuts aluminum (bolt), steel (nut)
Chain Guard option
Chaincase Compatible no