FAQ - Adjusting the HS brake perfectly

For: experienced bike mechanics 

Note: MAGURA HS brakes are available with different mounting standards, including EasyMount, EVO2 and HSi. Please note the specific assembly steps and the correct torque of the screw connections. A detailed video of the initial installation can be found on Youtube.

The following instruction is for Easy Mount brakes. You can find the Evo2 version below.

 

EasyMount:

The MAGURA Easy Mount Standard is based on a kind of ‘worm screw’ to align the brake cylinder to the rim. Alignment is done by turning the adjustment lever. The brake pad is adjusted parallel to the rim and slight misalignments (+/- 3 degrees) are automatically compensated for by the system. 

1. First check that your wheel is free of bearing play, that it is correctly centred and that it is fixed centrally in the frame or fork by the quick release or thru axle. If the wheel is running at an angle, this will already cause rubbing. Now clean the rim with a suitable cleaner and check it for damage. 

2. Reset the pad wear adjustment screw (TPA) so that it can compensate for pad wear in the future. If the lever has play in this setting, air has got into the system and the brake must be bled. If possible, use only new brake pads for the adjustment procedure. Loosen the adapter and socket screws or the quick release so that the brake cylinders can move freely.  Special case HS22: Note that the lever reach adjustment also has an influence on the brake pad, so reset this as well. 

3. Vertical adjustment: Now adjust the height of the brake cylinders by moving the adapter up or down. The brake pads should neither touch the tyre nor be below the brake sidewall. 

4. Horizontal setting: Now the distance of the pads to the rim can be adjusted by turning the adjustment lever on the EasyMount adapter on both sides. The distance between the rim and the pads should be approx. 0.5-1 mm. 

5. Fixation: Now tighten the lower screws of the adapter (socket screws) to 4 Nm and the upper screws (adapter screws) to 6 Nm. 

6. Checking your adjustment: The brake should now be perfectly adjusted. Check the adjustment by turning the wheel. If this is not right, other sources of error can be checked; see the article on magura.com. 

7. Finally, adjust the brake as desired by turning the pad wear adjuster.

 

EVO2 MOUNT: The brake cylinder moves freely in the bracket and offers flexible clamping for alignment to the rim.

1. First check that your wheel is free of bearing play, that it is correctly centred and that it is fixed centrally in the frame or fork by the quick release or thru axle. If the wheel is running at an angle, this will already cause rubbing. Now clean the rim and check it for damage. 

 

2. Reset the pad wear adjustment screw (TPA) so that it can compensate for pad wear in the future. If the lever has play in this setting, there is air in the system and the brake must be bled. If possible, use only new brake pads for the adjustment procedure. Loosen the adapter and socket screws or the quick release so that the brake cylinders can move freely. Special case HS22: Also reset the lever reach adjustment, as it also influences the brake pad.  

3. Vertical adjustment: Move the brake cylinders completely back so that the brake pads are fully retracted into the housing. Then adjust the height of the brake cylinders by moving the adapter up or down. The brake pads should neither touch the tyre nor be below the brake sidewall.  

4. Horizontal adjustment: When you’ve determined the vertical position, carefully pull the lever blade to adjust the horizontal distance to the rim to between 0.5 and 1 mm. 

5. Fixation: After finishing the adjustment, you can fix the brake cylinders again. Tighten the lower socket screw and the upper adapter screw with a torque of max. 6 Nm (or on the quick release) to the desired pressure. 

6. Now repeat steps 3, 4 and 5 on the left side. Make both adjustments again and fix the brake cylinder. 

7. Checking your adjustment: The brake should now be perfectly adjusted. Check the adjustment by turning the wheel. If this is not right, other sources of error can be checked; see the article on magura.com. 

8. Finally, adjust the brake as desired by turning the pad wear adjuster.

 

Trouble Shooting:

If the instructions above don´t help to adjust the brake perfectly, please see the following advices.

 1. Wrong assembly: Ensure that all the parts are correctly assembled. First check that the cantilever socket is tightly seated. Then make sure that the mounting plate is aligned correctly and that the EasyMount/EVO2 adapter is mounted correctly in relation to the cantilever socket. The screw in the cantilever socket should be fitted through the lower hole of the adapter. The upper bolt of the adapter must be guided into the mounting adapter hole intended for it. 

2. The pistons do not move: If the pistons move insufficiently or only with difficulty, even simple cleaning can help. Take the pads off the brake cylinders and remove dirt from the pad as well as the cylinder.  

3. The rim is buckled: It could be that the rim is buckled. This would mean that the rim rubs against the brake pad at cyclic intervals. If this is the case, the wheel must be straightened. Also check the rim for wear, damage and eccentric bumps or dips. 

4. Brake overfilled: If the brake is overfilled or there is too much oil in the system, pad adjustment may be impaired and rubbing may occur. Bleed the brake system.  

Safety advice: Only carry out work on your bike yourself if you feel confident enough to do so and you already have experience in maintaining your bike. Always bear in mind that a lot of work on the bike can be safety-relevant, so it’s better to have the check carried out by a specialist dealer!

 

Safety information:

We strongly recommend that you read the enclosed manual/operating instructions before using MAGURA products. Always observe and follow all instructions for assembly, operation and maintenance in this manual and the operating instructions of other manufacturers whose products are used on your bicycle – and please don’t overestimate the products’ abilities. Have assembly and maintenance work carried out in a specialist bicycle workshop or in an authorized MAGURA Service Centre, where a professional job is guaranteed. 

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