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Light disc brakes


Mudsimus

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R500 p/h... yeah, I wish!!!! It's normally a double brandy & coke and a "thank you fat sh!t" LOL Bt hey, what are friends for???

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They've bled it all ready, rode it 3 times, did one race... halfway, the front brake was screaming... but lucky all the short route rides looked back to see what the noise was and then got out of the way. Took it back to fred and when i went to fetch it, it was still not right. Are going back after work... Lets see what happens...

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I've heard that some XTR brakes have a problem where one piston gets stuck in the caliper. This means that when you squeeze the brakes, only the other (unstuck) piston is free to move, so it moves too far and when the brakes are released, does not go back to its origional position, resulting in constant contact between one side piston and the disk.

 

You can check for this by looking down through the gap between the disk and the pads, squeese the brakes and check if both side pistons move, or if its only one.

 

You can (apparently) fix the problem temporarily by taking out the pads, pulling the pistons out and cleaning and greasing the sides of the piston. Then putting everything back together.

 

I had this problem on my Hayes 9's (sticky piston) but it was so damaged by the time I realised what the problem was that I could not fix it. 
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Suggest you give Jade a call on 011 8075282 and ask him as he is the Shimano Technical Person at Coolheat.sm

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