ZYAMY 4pcs Bicycle Crank Ball Bearing 1/4 Inch X 9 Balls Ball Bearings for Bike Crank Bottom Bracket Mountain Bike Parts Repair Accessories
- Dimensions: The outer diameter is about 1.16 inches / 29.5 mm, the inner diameter is about 0.75 inches / 19 mm, and the ball size is 1/4 inch x 9 balls. Please confirm the size before buying! ! ! ! ! ! !.
- Material: The ball bearing cage is made of steel material, with high quality, high strength, sturdiness and durability, and can be used for a long time..
- Widely used for bicycle parts replacement, suitable for bicycle cranks, such as: mountain bikes, children's bicycles, low riding bicycles, children's bicycles, stretch bicycles..
- Suitable: 9-ball ball bearing seat, suitable for 19mm inner diameter head parts, it is an ideal substitute for your bicycle..
- Packing: 4 pieces of bicycle crank bearings 1/4" ball size x 9 balls. One pair of crank bearings is used for replacement, and the other pair can be used as a spare..