SRAM Red Brakes - Setup problems
bigburnsgeoff
Posts: 35
I'm lucky to have 2 road bikes at the mo both with SRAM Red 22 throughout. On both of them I have the same problem with the brakes. No matter what I try I cant get them to consistently re-centre so that one pad is not rubbing the rim.
You can fettle with the hex key and 13mm spanner fixings that tighten the central pivot bolt to the frame and get them set-up perfectly so that they re-centre when your in your workshop/kitchen/garage. But no sooner than you hit the road and you are forced to loosen off the brakes to give them a bit more space between the brake block and the rim as you can hear them rubbing when your out of the saddle - inevitably one side will remain almost on the rim and the additional cable that you have released will cause only one of the pads to move away from the rim, therefore not really solving the problem.
You can also adjust the screws that pre-load the return spring but I find that they dont resolve the problem either.
I appreciate that if you set-up your brakes so that they are very close to the rim you will get a bit of brake rub when your sprinting or out of the saddle but I find that these will default to a "rubbing" position under any circumstances. My rims are fine and there is not any excessive play in my hubs.
Is there a magic solution?
You can fettle with the hex key and 13mm spanner fixings that tighten the central pivot bolt to the frame and get them set-up perfectly so that they re-centre when your in your workshop/kitchen/garage. But no sooner than you hit the road and you are forced to loosen off the brakes to give them a bit more space between the brake block and the rim as you can hear them rubbing when your out of the saddle - inevitably one side will remain almost on the rim and the additional cable that you have released will cause only one of the pads to move away from the rim, therefore not really solving the problem.
You can also adjust the screws that pre-load the return spring but I find that they dont resolve the problem either.
I appreciate that if you set-up your brakes so that they are very close to the rim you will get a bit of brake rub when your sprinting or out of the saddle but I find that these will default to a "rubbing" position under any circumstances. My rims are fine and there is not any excessive play in my hubs.
Is there a magic solution?
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Comments
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When you get back and inspect, is it the bolt securing the brake caliper to the seat stay yoke/fork that has allowed the brake caliper to pivot? If it is, then I'd try tightening slightly higher than recommended after ensuring the locking washers were in the right place and set the toe in a little steeper. Presumably the cable inner isn't sticking somewhere?
I have my brakes set up for instant bite on both bikes, but find the SRAM red ones on my Basso never give me a problem. The direct mount brakes on the Reacto (Shimano 5810) always give me problems with binding on the rear wheel the more load I put through the pedals. So much so I end up disabling it during rides only to have to fettle with it again when I get home.I ride a bike. Doesn't make me green or a tree hugger. I drive a car too.0 -
Thanks for the suggestion. I'll try this to see if it helps0
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I found mine were sensitive to cable length outer too short or too long would push or pull the brake over0
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Over toque'ing the centre bolts has improved the situation but not got rid of the problem. I'll inspect the brake outer and potentially trim it0
