Technical

Open Vs. Closed System Brakes

Open System

With the Open System the lever position does not change relative to the bars, however hard or long the descent. To obtain drag free running this system uses an advanced caliper seal design. A metal diaphragm inside the reservoir self adjusts as the pads wear and also allows for expansion of the fluid, even at the highest temperatures. These features allow the brakes to be used for either downhill or cross-country.

Closed System

In this system the calipers feature positive reaction. Springs inside the caliper actually pull the pistons away from the disc totally eliminating drag. The lever offers excellent adjustment via the thumbwheel on top of the master cylinder. This type of system is ideally suited to cross-country or short downhill racing where elimination of drag is most important.

 

Spoke Calculator for all Hope hubs

 

Hope Technology disc brake user guide

Mono Mini, Mono M4 & Mono6ti Disc brake user guide (File size 480k)

Mini, M4 & C2 Disc brake user guide (File size 200k)

C2, DH4, XC4 & O2 Disc brake user guide (File size 350k)

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Hub Maintenance Instructions

Rear cassette hub

Drawings

Please select the caliper and lever drawings appropriate to your system. The complete set of drawings are not included in the above user guide because the resulting file would be very large.

Hubs

Headset

Calipers

Levers

Specifications

Conventional Bicycle Hubs and Disk Brake Bicycle Hubs Specs

Standard Brake Fitting Information