Центральный вал Открытый велосипед кривошипный набор замена левый и правый Алюминиевый сплав Спортивный Рычаг Велоспорт оси Нижний Кронштейн Hollow часть

Features:
Made of aluminum alloy, strong axial strength and strong compatibility.
It has light weight, stylish appearance, cool shape.
Ensure ultimate chain retention, Increase service life, and reduces friction and noise.
Hollowed one tooth disc shaft, suitable for mountain bike, highway bike of bottom bracket width 68-73mm.
Specifications:
Material: aluminum alloy
Crank length: about 170mm/6.69in
Screw diameter: about 15mm/0.59in
Specification: BCD104
Color: black/blue/gold/red/silver
Centre shaft:
Inner shaft inner diameter: about 24mm/0.94in
Thread outer diameter: about 34.9mm/1.37in
Tooth distance: 1.37*24TPI
Overall length: about 98mm/3.86in
Package included:
2 * Cranks
1 * Center axis
4 * Plate lock screws
4 * Installaiton screws
1 * Wrench
1 * PP cover
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2cm differences due to manual measurement.