The ZERO 30.15 x 41 x 7mm 45/45 Headset Bearing is a replacement angular-contact bearing designed for compatible integrated and semi-integrated bicycle headset systems. Its 30.15mm inner diameter, 41mm outer diameter and 7mm height make it important to match the existing headset bearing dimensions and contact angle before installation.
Key Features
- 30.15mm inner diameter
- 41mm outer diameter
- 7mm bearing height
- 45°/45° contact angle
- Angular-contact design for headset applications
- Suitable as a replacement for worn or damaged headset bearings
- Ideal for bicycle workshop servicing and headset maintenance
Specifications
| Specification |
Details |
| Brand |
ZERO |
| Type |
Headset Bearing |
| Inner Diameter |
30.15mm |
| Outer Diameter |
41mm |
| Height |
7mm |
| Contact Angle |
45° / 45° |
| Application |
Bicycle Headset |
| Bearing Type |
Angular Contact |
| Colour |
Black / Silver* |
*Exact finish may vary depending on the ZERO bearing batch.
Compatibility
The 30.15 x 41mm bearing size is used in a number of bicycle headset applications. However, the 7mm height and 45°/45° contact angle are critical for correct fitment. Similar 30.15 x 41mm headset bearings are available in 6.5mm and 7.3mm heights, so these should not automatically be considered interchangeable.
Replacement & Maintenance
A worn headset bearing can cause:
- Rough or notchy steering
- Headset play
- Clicking or grinding
- Increased steering resistance
- Corrosion or water-related damage
Replacing the bearing with the correct specification restores smooth steering and proper headset operation.
Important: Before ordering, compare the existing bearing's 30.15mm ID, 41mm OD, 7mm height and 45°/45° contact angle. The dimensions alone are not sufficient if the headset uses a different bearing angle or profile
