Help on Sram Xx brakes

[norm333]

The brakes have plenty meat on still but when climbing on the brakes it sounds as if its metal on metal

 

Checked the alignment of the caliper and all good

Is it the pad ( metal / resin)

 

Welcome some info please

Edited April 5, 2014 by norm333

[TheV]

Hello, what Rotors are you running?

 

New? Existing setup, or a new setup with used parts?

[norm333]

All new

 

Bike has 300km on the clock

[TheV]

All new

 

Bike has 300km on the clock

 

Anything changed lately, like you washed the bike and maybe got some oil/cleaner/lube,etc on the rotors?

 

Muddy and wet ride?

 

Making the same noise both front and back?

[norm333]

Yup

 

Had a muddy race a week back

 

Could it be this??

[TheV]

If it's making the same noises in the front and back:

 

1. then clean the both rotors with isopropyl alcohol.

2. take the pads out, clean with isopropyl alcohol, sand them lightly to remove any gunk, clean again with the isopropyl alcohol.

3. double check your rotors are torqued correctly and not loose.

[V12man]

If it's making the same noises in the front and back:

 

1. then clean the both rotors with isopropyl alcohol.

2. take the pads out, clean with isopropyl alcohol, sand them lightly to remove any gunk, clean again with the isopropyl alcohol.

3. double check your rotors are torqued correctly and not loose.

 

Make sure you clean the back of the pad, AND the piston contact surface too - I usually put a very light smear of HIGH temp copper slip on the contact surface - make SURE you do not contaminate either the pad or rotor with grease.

[svm3000]

HI Norm

 

I have the same problem as you with my XX BRAKES it sounds like it is metal on metal i have changed the pads to organic pads washed cleaned the rotors ect ... let me know if you come right

[Guest Smimby]

what V12Man said, and you can also use 800 grit sand paper on a FLAT surface and sand the pads.

 

wipe the rotors down with isoprop....

[V12man]

what V12Man said, and you can also use 800 grit sand paper on a FLAT surface and sand the pads.

 

wipe the rotors down with isoprop....

 

Sand the rotors too - just lightly - then clean with isopropyl alcohol - this takes the pad contact layer off the rotor - then you also need to re-bed the brakes too.

[StoffelWP]

I have seen this on certain rotors (like the Hope Saw). Going uphill your weight shift to the back and the thicker part of then rotor scratches the bottom of the caliper. Lift the caliper by putting spacers below the it.

[norm333]

Awesome thanks for this

 

I will do it this evening and check

 

Makes sense what you all say

 

Again thanks for the help