Hayes brakes have fallen off of many rider's radars for some reason or another, however, we must remember that it was instrumental in bringing disc brake technology to mountain bikes over 20-years ago. Four-piston brake developed specifically for the rigors of DH and Enduro Low-effort lever input (LoFi) for excellent braking feel and control QuickBite2 specific pad compounds paired with the Hayes D-series rotors deliver fast, consistent braking performance across all temperature and speed conditions Hayes … With an extremely light lever-action and immense stopping power, the Hayes Dominion A4 are a great choice for aggressive enduro and downhill riding. The brand has plenty of experience in motorsports and the technology it brought to the table was truly game-changing. >>> The best mountain bike disc brakes. Back order for another ~8 weeks. Lever with ball bearing main pivot. No problem. Hayes Adapter Bracket Guide; Dominion A4 Install and Set-up Guide; Dominion A2 Install & Set-Up Guide; Crosshair Equipped Brake Installation Instructions; Brake Pad Information and Burnish Process; Feel 'r Gauge (Caliper Alignment Tool) Instructions; CX/MX Mechanical Brake; Hayes Adapter Bracket Guide DOT 5.1 Oil fluid. A user-friendly brake for the trails Our rating . Aftermarket versions of the Dominion A4 brakes come with two sets of brake pads, in sintered metallic (Hayes calls these “T100”) and semi-metallic (“T106”) versions. Another nice surprise about the Dominions A4 is when I opened the box, there was an extra set of pads included in each brake. For further reference, a SRAM Code RSC goes for $244 per wheel and a Shimano Saint goes for $240. The Hayes Dominion A4 goes for $230 per wheel without rotor or adaptor. Adjustable lever-handlebar distance with dial, no tools required. Hayes Dominion A4 on order, along with bleed kit, rotors, spare pads... etc. PB Forum ... to buy a rebuild kit my LBS said "oh we don't fix them anymore just buy a new lever and a new caliper and pay us to install … To save you buying stuff you don’t need, it’s also available without rotors and adapters. The British-made Hope Tech 3 MSRP is just $20 more than that of the Dominions. They give you a set of metallic and sinister pads! I can deal with the DOT with all the money saved) Questions: - Any front/rear feel difference with the Dominion or the Direttissima with Kevlar hose? Hayes Dominion A4 is brake with tons of power and modulation. The Dominion A4 master cylinder is factory tuned for the shortest dead stroke possible and a crisp bite point. Features 4-piston brake designed for trail, enduro and DH use. They went on pretty easy, the bleeding process was confusing the first time, but it went pretty smooth after that. 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