Hayes Dominion A4 Disc Brake Caliper
| Brand | Hayes |
|---|
Hayes Brake has been leading the pack in brake technology since 1946. Their breakthrough design and performance was extended to the mountain bike market in 1997 . Hayes Disc Brakes set a new standard for hydraulic bicycle disc brakes Worldwide.
4 piston caliper for Hayes Dominion A4 brakesets.
Upgrade to A4 caliper if you need more power than the A2 and use the same lever.