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brake clearance issue

Old 02-04-09, 01:37 PM
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bfromcolo
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brake clearance issue

I changed the suspension fork on my old mountain bike, used to be RS Indy and I replaced it with a Dart 2. After moving all the brake parts over to the new fork, I had a problem with the knobby tires catching the brake arms. I moved all the flat washers to the inside and made it work but I have very little clearance and after a few hundred miles of wear and I will be rubbing again. The front tire is a 26x2.1 Velociraptor, which is what the bike was spec'd with in 99. This was kind of surprising since it all worked fine on the older fork, I have to assume the width between the brake posts on the new fork is different from the old one, but I haven't measured it.

Are there brake arms that offer greater clearance? The OEM Avid arms are on there now.

Or brake pads that are designed to standoff more from the arms? These are the Kool Stop 2 color MTB pad, they have some wear but are far from worn out.

I suppose I could also cut down the outside knobbies a little.

Thanks
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Old 02-04-09, 03:26 PM
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frankenmike 
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I had a similar problem. On my pads, there was enough space on the threaded stud to install another washer between the brake arm and the pad. Now there is plenty of clearance. If this won't work for you, look for pads with a longer threaded stud.
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Old 02-04-09, 03:31 PM
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Hawaiiwrench
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"all the flat washers..."
There are usually two pairs of washers that dish into each other, one pair fatter than the other, did you put the fat ones inside too?
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Old 02-04-09, 03:44 PM
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bfromcolo
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Originally Posted by Hawaiiwrench View Post
"all the flat washers..."
There are usually two pairs of washers that dish into each other, one pair fatter than the other, did you put the fat ones inside too?
Good question, I will check that when I get home.
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Old 02-04-09, 03:53 PM
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Order for you should go:
pad, washer, concave fat washer, convex washer, brake arm, convex washer, thin concave washer, washer, nut.
That's going inboard to outboard obviously...
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