Wide variety of chain case choicesFor 9 speed drivetrainsSquare taper bottom bracket fitmentPin position with better clearance toward chaincaseThis crankset requires a 123mm bb axle length
Shimano FC-M311 Altus Square Taper Chainset
Shimano FC-A073 Square Taper Triple Chainset 7-/8-Speed
Second Life - Internal Bottom Bracket Removal Tool (square Taper Octalink And...
Pro Taper Square 2.0 Race Molded Bar Pad - Green
Pegasus Large Clipper Cutting Comb Taper Square Back - 615 in Black - One Size
Pro Taper 2.0 Square Molded Race Bar Pad - Blue
