SIGN UP

Mountain Bike Brake Noise

Avatar Image
Donquixote | 12:11 Wed 05th Oct 2011 | Other Sports
0 Answers
I'm experiencing a weird problem with the set of Elixir's I've just fitted to my Kona. I picked up a mint condition Kikapu - this thing was literally showroom condition - for peanuts and decided to upgrade it to use as an everyday bike. I replaced the old Marzocchis with Recon Silver TKs, and the Hayes mech. discs with Elixir 5s and G3 rotors (185 front and 160 rear). They work brilliantly; the stopping power and modulation is superb, and they've bedded in perfectly. But in the last week a weird humming noise has developed at the front - it's so loud that I could hear it even when riding with my headphones in! I presumed it was the disc rubbing, but it's not. The wheel spins freely and there is no noise when depressing the lever; I've cleaned the calliper and disc thoroughly just in case, and they're absolutely fine. It has been driving me mad trying to work out where the noise is coming from!!!
If I hold the bike upright and rock it gently from side to side, without turning the wheels and without activating the brakes, after a few moments the noise starts up... you know the humming noise that you get when you run a wet finger around the top of a wine glass? It's like that! When I hold the bike still again the nice continues for a few seconds and then stops. But when I hold the front brake on and rock the bike, it doesn't happen. All I can think is that it has something to do with the brake line, rather than the calliper/rotor - maybe air moving along the hose?

Please, if anyone knows what might be causing this noise TELL ME!!! It's driving me insane!!!!

The Kikapu's a 2007 model with a really tinny sounding 7005 frame. Could frame resonance be a factor?

DonQ
  

Answers

rss feed

Best Answer

Nobody has yet answered this question. Once some answers have been given, Donquixote will be able to select one answer as the best. Once a best answer has been selected, it will be shown here.

For more on marking an answer as the "Best Answer", please visit our FAQ.
There are no answers available for this question.

rss feed

Do you know the answer?

Mountain Bike Brake Noise

Answer Question >>

Related Questions

Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.