The Dominion A2 is an evolution of the award-winning Hayes Dominion A4 and is aimed at cross-country and trail bikers. The Dominion A2 has a two-piston brake caliper. The Dominion A2, with its compact two-piston caliper, offers the same braking performance as the Dominion A4. Thanks to the Short Reach Lever option, the Dominion is the ideal brake for riders with smaller hands or those who prefer a short grip distance.
The Dominion SRL retains the braking power and feel of our proven Dominion A4. It achieves this with the help of a specially designed smaller and narrower brake lever. The Dominion SRL can be used in combination with our Dominion A2 two-piston caliper or our Dominion A4 four-piston caliper. With different lever sizes and two caliper options, the Dominion by Hayes Disc Brake now gives you a disc brake that's ideal for your use.
The Dominion A2 features the in-house QuickBite² system, which allows you to polish brake disc surfaces quickly and evenly, and works perfectly with our D-Series brake disc for optimal thermal management and minimal brake noise.
