Crank description:
Brand: JIANKUN (IXF)
Crank Arm length: 170mm
Material: AL6061 aluminum alloy
Compatible: Single/Double/Triple chainring; for 7/8/9/10/11S chainring
Bolt Center Diameter: 104mm BCD
Weight: about 637g (right & left)
Color: black, red
Advantages: light weight,stylish appearance,very cool,high strength axle,strong compatibility
Bottom Bracket description:
Brand: JIANKUN
Size: 41*24*24mm( threaded)
Spindle/Bearing inner diameter: 24mm
Fit BB shell width: 68/73mm
Fit BB shell inner diameter: 1.37in x 24 TPI
Spindle Interface Type: Hollowtech II
Chain line: 48.5mm
Bearings: Sealed (3 spacers included)
Hollow axle, one piece external bottom bracket for MTB/Road bike,folding bike refitting
Suit for Shimano, FSA compatible. Giant ATX770 ATX770-D XTC750 and so on