Shimano alivio M411 hybrid crankest has hyper drive SG-X chain rings. Replaceable steel chain rings, cold forged crank arm, chain case compatible. 50-Millimeter chain line, gearing : 42-32-22T/48-38-28T.

• Shimano UN55 BB Square Taper Bottom Bracket
• Shimano BB-UN26 Square taper Bottom Bracket
• Shimano CN-HG50 6/7/8-Speed Chain, Black
• Park Tool Crank Puller for Square Taper Cranks
• Park Tool BBT-22 Shimano Sealed Cartridge Bottom Bracket Tool