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.
Features
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
45×45 degree contact angle bearing
Specifications
| Crown Race | 1.5″ |
|---|---|
| S.H.I.S. | EC44/40 |
| Part Number | BAA1029K |








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