XT BL-M785 Hydraulic Disc Brake - 2012
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These Shimano XT Disc Brakes M785 are a big improvement over old XT brakes. At first glance, you'll see how they use an in-line master cylinder as opposed to the radial design of the M-775. This allows a lighter weight system and an easier bleed process. They still use mineral oil as a hydraulic fluid. The great part is that it's non-toxic and non-corrosive. If you spill some when you bleed your brakes, there's nothing to worry about.
They take their design cues from the new XTR M988 Trail Brakes. And though these might not be as visually refined as the highly polished XTR units, the stopping power speaks for itself. This is hands down the best XT brake we've ever ridden. In addition to the excellent power and modulation, the XT Brakes offer easy adjustment to make your hands happy and to give you ultimate control. There is a tool-free reach adjustment that you can dial on-the-fly. They also have a free stroke adjustment that lets you determine how far you like the blade to travel before your pads make contact with the rotor. Basically, you can dial them to perfection.
Size wise, the M785 levers are much lower profile than the M775 levers, but more importantly, the movement of the lever pivot towards the bar creates a more efficient design. In essence, the arc of the lever optimizes your natural finger movement and position of strength with the point in the lever travel where your power is transferred through the system to the caliper. These also feature Shimano's Servo Wave technology. Servo Wave allows the pads to sit further from the rotors at rest (a great feature for trail/all mountain bikes that might see more rotor abuse than a race machine). This is possible as the piston travel changes relative to lever travel as you squeeze on the brakes to close the gap to the rotor quickly, then slowing to allow predictable modulation.
The calipers use a 22mm ceramic piston for inspiring stopping power, and Shimano has brought back a banjo fitting for the hose attachment at the caliper. We're glad, because it allows more flexibility with hose routing to keep it safe and looking nice. They also employ Shimano's Radiator Pads. They have integrated fins that rise up out of the caliper to dissipate heat from the pads and caliper body, reducing the temperature by around 50 degrees Celsius.
The Shimano XT Brakes M785 are available separately as right or left levers and calipers and have hinged, split clamps for easy mounting. They come as pre-bled lever/caliper/hose assemblies and are complete for each end of the bike except for rotors (sold separately). Shimano XT Brakes will work equally well with XT Ice Tech Rotors or standard XT rotors.
Please Note: If you plan to run 180mm or bigger rotors, you may need to also purchase the proper Shimano caliper adapters. Check your frame and fork compatibility to determine your needs.
- Lever
- aluminum
- Lever Adjustability
- reach (tool free)
- Actuation
- hydraulic (Servo-Wave)
- Caliper
- 1-piece forged
- Caliper Adjustability
- adjustable banjo
- Mount Type
- post
- Fluid
- mineral oil
- Pre-Bled
- yes
- Rotor
- not included
- Recommended Use
- stopping your mountain bike
- Manufacturer Warranty
- 2 years
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