- The AER-Series maintains the quality and durability our bearings are known for, while shaving 35% of the weight
- Hybrid steel and aluminum bearing that provides even greater durability and a 40% weight savings over comparable models
- Strategic machining and precision contours provide an optimal balance between weight savings and strength
- An ideal headset choice for road and mountain bike applications
- Aluminum crown race with integrated low-friction seal
- 36x45 degree contact angle bearing
- Stack Height: 1mm
- Crown Race: 1.5"
- S.H.I.S.: IS52/40
Please Note: We do not allow coupons on this product.