Features: The bearing is made of quality steel material, anti-rust, sturdy and durable. Fine machining ensures smooth surface and smooth rotation, perfectly fits your bike helmet. The sealing ring is ideal for keeping dust and water away to extend durability. The grease built into the slot can prevent the balls from corroding and make them rotate freely. Useful accessory to replace the old bicycle helmet.
Specification:
Material: bearing steel
Colour: as shown in the picture.
Options: 41 mm; 41.8 mm; 47 mm; 49 mm; 52 mm.
Size (outer / inner diameter): approx. 41/30 mm; 41.8/30 mm; 47/34.5 mm; 49/38 mm; 51/40 mm; 52/41 mm.
Weight: approx. 21 to 32 g
Suitable for repairing most hidden, semi-hidden and external bearing helmets on the market.
Note:
Unable to repair the old ball or ball helmet (like a bearing).
Package list:
1 x bicycle helmet bearing.