915 Generation Bicycle 9 Ball Bearings 5 Pieces Mountain Bike Ball Bearing

Detailed information about the product：

Product name: bicycle ball bearings
Number: 9
Diameter of the ball: 6.3 mm
Material: Steel ball
With an outside diameter of: 2.9 cm
Internal diameter: 17 mm
Color: silver tone
Weight: 61 G
Package: 5 x ball bearings for bicycle
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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