Description Name: DJC Components Origin: Mainland China Category: Crank Material: Aluminum Alloy Use: Mountain Bikes Prowheel MTB Bike Crankset, Square Taper Bottom Bracket Compatible, 104BCD, 170mm, 175mm, Deckas Chainring, Mountain Bike, 30T-50T Tooth, Lightweight Model: Prowheel 104BCD Crankset, 1x/2x Speed, Square Taper Crankset BCD Options: 104BCD and 64BCD, Compatible with 1x and 2x Drivetrains Length: 170mm, 175mm Speed Compatibility: 7, 8, 9, 10, 11, 12 Speed Body Material: Aluminum 6061 Crank Weight: 580g Chainline: 49mm, 52mm (Boost) Chainring: Deckas Chainring Tooth Count: 30T, 32T, 34T, 36T, 38T, 40T, 42T, 44T, 46T, 48T, 50T Package Content: Option with Chainring: Crankset, Chainring, Bolts Option without Chainring: Crankset Only (No Chainring Included)