FAQ - What to do if your bike’s braking performance suddenly deteriorates?

If you suddenly notice that the performance of your brake deteriorates even though the system is tight and the bite point is good, try these measures to remedy the situation.

 

CHECK THE BRAKE PADS:

Check the thickness of the brake pad:

The combined thickness of the pad and the carrier plate must not be less than 2.5 mm. You can use the MAGURA transport device to test this (see the Manual).

Check the pad for glazing:

Glazing of the brake pads leads to a harder surface. This changes the coefficient of friction, decreasing braking performance and causing vibrations and noise. A glazed pad can be identified by its smooth and shimmering surface. This glazed surface cannot be removed by grinding. Please replace glazed pads and ensure that the brakes have been correctly broken in. FAQ: Bedding-In Procedure

Check pads for contamination:

Pads that have been contaminated by oil or other friction reducing substances, must be replaced. Contaminated pads cannot be restored by cleaning or removing some of the pad surface. Please also note, that some detergents can leave a thin, friction reducing film.

 

CHECK THE BRAKE ROTORS:

Check the rotors for wear:

The thickness of the brake rotors must not fall below 1.8 mm.

Clean the rotors:

Clean the rotors thoroughly with methylated spirits or brake cleaner.

 

Tip:

If the insufficient braking power usually occurs at the end of descents, the brake rotor diameter should also be checked and, if necessary, changed to a larger rotor to give the brake better thermal stability. However: bigger isn't always better - a larger rotor can decrease overall performance in some cases. FAQ: Rotor Size

 

 

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 authorised MAGURA Service Centre, where a professional job is guaranteed.

 

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