MTB bike crankset bicycle hollow integrated crank modified single disc 104BCD 32 34 36 38 40 42T crank bottom bracket

Name: Hollow crank
Crank: 170MM / 175MM
Material: aluminum alloy
Specification: BCD 104
Weight: 640g left and right cranks
Advantages: made of aluminum alloy, light weight, stylish appearance, dazzling shape, strong shaft strength, strong compatibility
Name: bearing center axis
Origin: Taiwan
Type: floor mount
Hollow integrated sprocket shaft, suitable for mountain bikes and road bikes with a width of 68-73mm