Bicycle Stem Bearing General Steel Bicycle Headset Bearings Repair Parts Accessory

Features:
The bearing is made of quality steel, anti-rust, sturdy and durable.
Fine machining ensures smooth surface and smooth rotation, fits your bike helmet perfectly.
Sealing ring is good at keeping dust and water away to prolong durability.
The grease embedded in the slot can prevent the balls from corroding and make them rotate freely.
Useful accessory to replace the old bicycle helmet.

Specifications:
Material: bearing steel
Color: shown as picture
Options: 41mm; 41.8mm; 47mm; 49mm; 52mm
Size (outer/inner diameter): approx. 41/30mm; 41.8/30mm; 47/34.5mm; 49/38mm; 51/40mm; 52/41mm
Weight: Approx. 21-32g as bearing) helmet.

Package List:
1 x Bicycle Helmet Bearing