High-Quality Steel Bearings for Mountain and Road Bike

Name: RISK Headset Specialized Bearing
Material: Bearing Steel
Size：
O.D*I.D*THK (Angle: 45°)
41*30*6.5
41.8*30*6.5
47*34.1*7
49*37*7
51*40*7
52*40*7
Unit:mm
Applicable: Common Bearing Headset.
Note:Loose bearing and similar bearings are not applicable
RISK Headset Specialized Bearing
Multiple specifications
Flexible rotation
Quiet and silent
Airtight waterproof
More sizes, more choices!
Here are the usual ones!

Product Size
Note: 41mm ≠ 41.8mm can not be mixed, please pay attention to the distinction!
Multiple specifications
Note: There is tolerance in manual measurement, please refer to the actual product.

Product Introduction
Steel sealed bearing
Data, clearly visible
Maintenance free
Flexible rotation
Quiet and silent
Easy to adapt to the harsh riding environment!

Steel cage sealing system
Selected high-quality steel, the is strong, smoother, and can't change under high pressure.
It is internally filled with high-viscosity grease, with sealing ring, rust-proof and maintenance-free!
Bearing steel

RISK Do our best to make products!
Sealed waterproof, rust-proof, maintenance-free!
Sealed rubber ring bearing, more durable!
RISK Do our best to make products!

Quiet and Silent Quality Guarantee
Size, clear and visible
(Model/Outer Diameter/Height/Angle)
Fine work, smooth surface!