Brake clamps IDM Magura for hydraulic rim brakes Magura HS11, HS22, HS33. Thanks to those IDM (Integrated Direct Mount) clamps is possible to mount Magura HS brakes directly on the frame / or fork (with correct 4 bolt brake mounts) without EVO2 adapters. Mounting is made by steel 4-bolts, which are also part of the package. This solutions is often used on trials bikes but also on trekking bikes. Clamps are made from forged aluminium alloy.