Suntour's XCM-T is a 9-speed triple crankset with melt forged alloy arms that comes in either square taper or Octalink bottom bracket options. - Steel chain rings - Forged alloy crank arms - 50mm chain line with a 113mm BB

A 10-speed, double crankset with melt-forged arms intended to be used with Octalink bottom brackets. - Alloy crank arms - Alloy outer ring, steel inner ring - 48.7mm chain line with a 113mm spindle - Number of Chainrings: Double - Chainline/Hub Compatibility: 135/142 MTB Hubs - Crank Intended Use: Mountain - Pedal Spindle: 9/16" - Rings: 36/22 - Spindle Interface Type: Shimano Octalink V2 - Drivetrain Speeds: 10 - Chainring BCD: 104, 64 - BB Included: No