Name: hollow one crank crank
Crank: 170MM
Material: aluminum alloy
Crank screw diameter: 19MM
Compatible: Single disc, double disc, three disc
Specifications: BCD 104
Weight: a crank around a 637g / BB 110g
Color: gold, purple, blue, black, silver, red
Advantages: made of aluminum alloy, light weight, stylish, stunning shape, axis strength, compatibility
