107mm MTB Bike Crank 104BCD IXF Arm chainring Aluminum Mountain Road Bicycle Crankset with BB

Crank description:

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:

Size: 41 *24 *24mm (threaded)

Spindle /Bearing inner diameter: 24m

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.