• 104BCD and 4 Arms: It fit for MTB frame. 104mm BCD is a popular crankset. It with spindle offers higher rigidness when riding. Length we offer 170mm and 175mm.
• Multi Speed Support: the crankset can use as 1x, or 2x and 3x speed. Use as 1x speed is more popular. It comes with 1 unit 104bcd narrow wide chainring in package, works for 7-12s chain. Crankset hole for pedal is 9/16 inch(14mm).
• Thread BSA Bottom bracket included. Aluminum side cap inside. Crankset spindle diameter is 24mm, it is same for Shimano size.
• Forged Aluminum and CNC process: it is 3D forged and CNC processing. Material Aluminum 6061. Hollow tech applied to make it lightweight. A pair crankset weight 680g only.
• Package Content: a pair crankset, 1pcs 104BCD narrow wide chainring, 4 sets steel bolts, 1pcs BSA bottom bracket, aluminum side cap, wrench for side cap.