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What is my bike's problem ?

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What is my bike's problem ?

Old 08-04-18, 10:04 AM
  #1  
badangel
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What is my bike's problem ?

the voice coming from front wheel .

https://streamable.com/lch1b
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Old 08-04-18, 02:32 PM
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CliffordK
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Look at your brake pads. I haven't dealt with discs a lot, but a squeak could be a sign of worn pads and metal on metal.

It sounds like your brake is probably rubbing.

You might try slightly loosening the tension on the brake calipers (cables/inline adjusters).

Also, look at whether your disc brake rotor is wobbling. If it is, then it may need to be trued. There should be some notes on the web about truing a disc brake rotor at home with simple tools.

I'm surprised you only get about a half a revolution with the wheel. Fix disc issues first, then if it doesn't get better, then pull the cones off clean and inspect the cones for pitting and bearings for damage, then regrease, reinstall, and adjust (cone wrenches necessary).
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Old 08-04-18, 06:27 PM
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Nut behind the handlebars.
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Old 08-04-18, 08:31 PM
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Originally Posted by CliffordK View Post
Look at your brake pads. I haven't dealt with discs a lot, but a squeak could be a sign of worn pads and metal on metal.

It sounds like your brake is probably rubbing.

You might try slightly loosening the tension on the brake calipers (cables/inline adjusters).

Also, look at whether your disc brake rotor is wobbling. If it is, then it may need to be trued. There should be some notes on the web about truing a disc brake rotor at home with simple tools.

I'm surprised you only get about a half a revolution with the wheel. Fix disc issues first, then if it doesn't get better, then pull the cones off clean and inspect the cones for pitting and bearings for damage, then regrease, reinstall, and adjust (cone wrenches necessary).
+1 I had a disc warp after three years. I bent it a back a little and so far so good.
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Old 08-05-18, 04:46 AM
  #5  
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Try centering the caliper first. Loosen the caliper so it wiggles. Squeeze the brake lever and, while continuing to squeeze, retighten the caliper. Release the brake lever and see if it still rubs.
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Old 08-05-18, 10:12 PM
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^ Center the caliper. But even so, your front wheel should continue spinning even if there is a slight rub. It stops after a few revolutions. Something else may be wrong there too.
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Old 08-06-18, 01:00 AM
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Also, make sure the disc bolts themselves are all tight. A coworker has something similar recently, and that turned out to be the case. D'OH!

Good luck!

Geoff
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Old 08-06-18, 01:52 PM
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Milton Keynes
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That video sounds like you ran over a bird.
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Old 08-07-18, 08:17 AM
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Originally Posted by badangel View Post
the voice coming from front wheel .

https://streamable.com/lch1b
Your pads are hitting the rotor. The lack of spin tells you that. Whether it is a bent rotor or poor pad placement is hard to tell from a video...especially one where the camera keeps moving!...but I would suspect the rotor. Sight down between the pads and the rotor while spinning the wheel (slowly!) and watch if the rotor moves back and forth. If it does, you need to true the rotor. This link tells you how to do it. You really don't need the fancy truing stand, either. I've found it's easier to true a rotor using the calipers as the guide. You can also use an adjustable wrench instead of the rotor truing tool.
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