Noise from rear brake discs

[Owen cobb]

I notice whilst riding yesterday I had a noise coming from the rear disc on the wheel. The only way to describe it is if you tap it with your finger nail the noise it makes is what I here a lot whilst riding. I have had the wheels off to make them tubeless and this seemed to only have occurred since I put them back on. Does anyone know what might be causing it or is it because it’s so new bike has only done about 45 miles

 

[Mcharza]

1. Open the rear axle and try to re-center the wheel.
2. Check that the disk is straight
3. Re-center the brake saddle

 

[Owen cobb]

1. Open the rear axle and try to re-center the wheel.
2. Check that the disk is straight
3. Re-center brake saddle

Apologies part one and two quite straight forward item three I’m not quite sure what you mean

 

[Mcharza]

The brake caliper has two bolts, loosening them to allow you to re-center the brake caliper, if necessary.

 

[DanDilla]

Could also be something small accidentally left in the tire (washer, screw) or a loose valve, would be my first suggestions as the noise is like something solid tapping the tire.

Did you use a tire insert (rim protection)? I used a Huck Norris some time ago and it tended to rattle, at braking it often made some extra spins, if you mounted it too loose.

How much sealant did you use? If there’s a little lake in the tire that also tends to make Sounds like tapping on your tire. As it literally is.

 

[Jeff McD]

Are you sure you did not also adjust the chain keeper? If the bolt loosens on this chain keeper it will slip down and contact the chain as you are peddling making that ticking sound that is hard to locate the source of. Just something to check. Just loosening the bolt and raising the chain keeper will get rid of it. I actually have gotten in the habit of checking this bolt after every ride because it tends to loosen up easily. Also put Loctite and that seems to fix it. Just something to keep in mind if you can't find what is causing it.