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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 02-22-08, 11:00 AM   #1
chuckerboy
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brake problem urgant help !!!!

i have got new brake pads, and then when i brake they just slow you down but the wheel dosent lock ??
how would i get it to stop instantly ?????
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Old 02-22-08, 11:16 AM   #2
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Squeeze harder, set up brakes correctly, use proper brake levers, use better pads, proper brake line tension.
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Old 02-22-08, 12:43 PM   #3
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I recently installed new front brake pads on my bike for the first time, and found I needed to do some adjustments before I got them working right. This website (Park Tool- Brakes) was useful for me.

First thing to check...did you use proper replacement pads? If you include more details on your bike, the braking system, and the exact brake pads you purchased somebody here may be able to let you know.

Are your levers going all the way to the bars when you apply the brakes? If so you need to adjust the cables.

Did your old brake pads work fine, or were you having the same problem with them?

If in doubt take the bike to your LBS (don't ride it with malfunctioning brakes!) and let them show you what is wrong and how to fix it.
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Old 02-22-08, 02:06 PM   #4
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how would i get it to stop instantly ?????
Ride into something immovable.
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Old 02-22-08, 02:23 PM   #5
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Ride into something immovable.
It isn't the high speed that's the problem, it's the sudden stop at the end.

Wait, that was about falling... In this case, I get this vision of a rider flying through the air suddenly realizing that he didn't really want the bike to stop instantly.
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Old 02-22-08, 06:01 PM   #6
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if you've tried all of the above (all good advice, minus hillrider's joke) and the pads still aren't gripping, try removing the pads and filing them down a bit with sandpaper, or an emery board. this can get rid of the outside layer of hardened (oxidized?) rubber on new old stock that's been on the shelf for a couple years.
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Old 02-22-08, 06:12 PM   #7
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if you've tried all of the above (all good advice, minus hillrider's joke) and the pads still aren't gripping, try removing the pads and filing them down a bit with sandpaper, or an emery board. this can get rid of the outside layer of hardened (oxidized?) rubber on new old stock that's been on the shelf for a couple years.
Great advice....unless we're talking about disc brakes.

If chuckerboy could supply a bit more info about the brake type, application, etc...we might be able to provide more accurate answers.
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Old 02-23-08, 03:14 AM   #8
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its a hydro brake, avid 3
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Old 02-23-08, 03:40 AM   #9
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Exactly what kind of brakes and pads do you have?
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Old 02-23-08, 08:54 AM   #10
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My joke not withstanding, did the new pads make the situation worse or not improve an already bad problem? Also, what are your rims made of? If they are steel, you will never get good braking no matter what brakes or pads you use.

Finally, there are no brakes, pads or tires that will stop a bike instantly so that was the reason for my joke posting. You don't want to lock the wheels as that makes stopping distances worse or leads to a crash. Decent brakes on good Al rims are fully capable of locking both wheels but that's not the way to stop.
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Old 02-23-08, 09:23 AM   #11
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try removing the pads and filing them down a bit with sandpaper, or an emery board.
+1
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Old 02-23-08, 09:47 AM   #12
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You may have misaligned the caliper. When you squeeze the lever is the inside pad making contact with the disk? Or, if the pads have been contaminated with brake fluid or oil they're trashed. If the braking was poor before the pad change you may need to bleed the system. The best advise is to go to the SRAM web site and read the manual. It's about 50 pages long and covers all service aspects of your braking system.
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