Hayes Dominion A4 Disc Brake KIT 4 Piston for Trail/Downhill Bronze What that means in terms of performance is: Absolute minimum dead stroke Predictable power progression Realistic maximum power High clamping force Brand: Hayes Model : Dominion A4 Riding Style: Trail /Downhill Pistion: Four 17mm diameter pistons push one of two new brake pad compounds. Caliper Mount Type : Post Mount Color : Bronze Position options : Front / Rear / Front+Rear Pad Material : T106 Semi-Metallic, T100 Sintered Metallic (Both included) Weight : 314g Brake Lever Actuation : Hydraulic Brake Lever Use : Left or Right Fluid : Hayes DOT 5.1 Graphics : Laser Etch Alignment : Crosshair Lever Pivot : Sealed Cartridge Bearings Pad Retention : King Pin Bleed2-Stroke : Dual Port Bleed System Hydraulic Hose Length options : Front 1000mm / Rear 1800mm / Front 1000mm+Rear 1800mm Hayes Dominion A4 Disc Brake Giving enhanced control and stopping power to the rowdy riders of enduro, trail, downhill and E-MTB rides, this excellent disc brake from Hayes features an all new system. With its four-piston technology, this intuitive brake setup features an adjustment for the lever travel and the pistons of the caliper for a defined increase in braking force when the pad contacts the disc.Easy to Adjust Hydraulic Brakes With a 2-stroke dual port bleed system for safe and efficient venting and a ball-bearing brake lever with tool-free dead stroke adjustment, maintaining the brake for top performance is simple and quick to let you get on with keeping your steed in control as master what the mountain throws at you. This item is in the category "Sporting Goods\Cycling\Bike Components & Parts\Brakes". The seller is "danray168" and is located in this country: TW. This item can be shipped worldwide.