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Chamelion
01-04-2007, 01:10 AM
Hello,

I have a Giant Alias with Hayes So1es on it.

Since I've owned it I've always noticed a 'fluttery' feeling whilst breaking.

Tonight I noticed this

http://users.on.net/chamandjem/rotors.JPG

As you'll see it seems there pads are rubbing against the discs 'arms' whilst completely missing the outer most portion of the rotors contact surface.

The rear is actually a little worse, which makes me wonder if the disc mount tabs on the Alias frames are ever so slightly in the wrong spot... Could it explain the squeeling some people get?

I see that it would be possible to use a thin washer on the front to re-align it, but what could I do about the rear?

Matt.

Jon
01-04-2007, 06:04 AM
Same as on the front,get some thin stainless steel washers and space your calipers out so the pads are on the breaking surface correctly.Also with Soles you may have to adjust the fixed side pad after you move the caliper. Make sure everything else is in the correct spot ie adapters are tight ,axles tight etc. When playing with a stack of washers ,maybe 3-4 or similar ,use some wet cake soap to stick them together,makes using them easier when trying to jiggle them into the correct spot and get a bolt through them.Grease works better for this but is very bad on the wrong surface (rotors,pads) so should not be used unless you are extremely careful.Good Luck
cheers jon

Pebble
01-04-2007, 06:36 AM
It's pretty normal for the soles I think and the problem isn't exclusively your bike - it was exactly the same with the ones that came on my Trance. Mine were the IS mount and there was not way to fix the problem, but I never noticed any performance issues due to that (it's the same reason that the old juicies were said to squeal so bad, but I don't know of performance probs with them otherwise).

Unless your soles are post mount (ie mount to black brackets and then onto your frame and fork) I don't think there's much chance you'll be able to fix it with shims.

If your performance is suffering then check your pad adjustment - easy to do using an allen key for both the inner and outer pad.