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Brake Adjustment

Old 04-13-20, 06:39 PM
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fabezz
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Brake Adjustment

Hi All,

I just replaced the tyres on my sons bike with fatter mountain biking tyres, but now the brake cable is rubbing against the tyre when he rides it.

Can anyone advise if/how I can adjust it?

Cheers!
Mark
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Old 04-13-20, 10:08 PM
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Assuming v-brakes, and the tire is hitting the cable at the top between the clinch bolt and noodle, you'll either need to get narrower tires or look for other brakes that provide more clearance.
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Old 04-13-20, 10:18 PM
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It would be good if we could see pictures. But you can't post pictures until you have 10 posts. Some people post on another website and post a link to it. I don't know if you have that option. There can be so many situations where brake cables rub against tires.

On my fat bike, the front brake cable would rub on the tire when the front suspension went down. It did run inside the forks. I rerouted it to run outside the forks.
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Old 04-15-20, 11:14 PM
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Thanks Alo. I actually managed to adjust them slightly so the cable has a bit of clearance from the tyre. Fingers crossed for now!

Cheers
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Old 04-16-20, 12:35 PM
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Typical v-brake hardware has two sets of cone/cup washers on the pad mounting bolt. One set is usually thicker than the other, and often the thinner set is on the inner (tire) side of the brake arm. I have had occasions where I had to reverse this - putting the thicker set on the tire side to provide more clearance. You might try this. Also, are the brake pads worn down? This could also cause clearance issues.
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Old 04-16-20, 08:42 PM
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Originally Posted by MNebiker View Post
Typical v-brake hardware has two sets of cone/cup washers on the pad mounting bolt. One set is usually thicker than the other, and often the thinner set is on the inner (tire) side of the brake arm. I have had occasions where I had to reverse this - putting the thicker set on the tire side to provide more clearance. You might try this. Also, are the brake pads worn down? This could also cause clearance issues.
Cable rub on the top of the tire is generally worsened by the brake arms splaying further outwards. This is what placing the pad's thicker spacers between the pad and the arm does. Unless the frame posts are so far apart WRT the rim width that the arms are tilting to each other. Andy
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