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Topic: Brake Noise Question
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Michelle
WA
Member Since:
06/20/2007 Total Posts: 60
5.9 Years Ago
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Did a half-ironman this past weekend and it was mandatory to rack our bikes the afternoon before. It was a couple hour trip getting there with our bikes on a hitch- mounted rack. I rode before racking it just enough to know everything was in working order. I racked it by the seat even though it dangled in the air, it wouldn't work racking it on the bars with my aerobar configuration.
First time I brake during the race I have an extremely loud squealing noise and it never got better. I slid a little in one turn after lightly applying brakes, which has never happened to me and I am no speed demon so I doubt I was taking this turn that crazy. I hopped off shortly after to see if I could see anything, everything looked fine. Also, it was recommended to pump tires to 120 and I always have ridden at 100, maybe this contributed to my slid. I'll go back to 100/110. Anyways the next day I want to show my friend how loud this squeal is and its gone. The bike was in the hotel room that night. So a little bit of research and I see that cold can be a factor in brake noise, but wouldn't the brake pads have warmed up after a few applications of the brake? Any ideas or is my bike possessed? |
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Chris
NH
Member Since:
01/19/2004 Total Posts: 852
5.9 Years Ago
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This may have had to do with road conditions when the bike was on your hitch mount rack. This is just a guess, but if you went through dusty conditions you may have built up a layer of grime on your wheels that contributed to the noise. I notice this from time to time after having bikes on the FJ Mobile hitch mount bike rack.
Your tire pressure thing may be unrelated. If you are planning on riding during your race at 120 psi, you should also consider training using the same pressure. The bike handling may be different enough to notice. |
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Jim
CA
Member Since:
08/27/2005 Total Posts: 640
5.9 Years Ago
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Many people use spray lube for their chain. If this, or other lube,finds it way to the braking surface it will let loose a loud SQUUUUEEEEEELLLLL when braking. This usually goes away after a few days of use, or a wipe down of the surface with a degreaser.
It also reduces the braking capabilities, so you may have slid in the corner by not having effiecient brakes. The difference in tire pressure should have nothing do do with braking. However, harder tires are more apt to slide in a corner is you hit pebbles.
Good Luck,
JC1.5 |
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Michelle
WA
Member Since:
06/20/2007 Total Posts: 60
5.9 Years Ago
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Thanks Chris and Jim for responding. I had done a good cleaning and lubing of the chain at home, but then added some more lube for good measure at the rack and probably wasn't that careful in applying it, and it was like your description, Jim, really loud. I like to be more anonymous with my biking, I'll try not to make that mistake again!! Thanks, MC |
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