My xtrs have same pull on levers every time but the power is noticably inconsistent -sometimes fantastic sometimes not great. Sometimes front, sometimes back. A friend has same problem. I've done everything imaginable and so has he. My hopes never did this. There is no air in the system and I use metal pads. When they are good they are fantastic then next time its as if they got a little oil on one of them ... then next time I ride brilliant again - wierd anyone else had this?
Believe me I have become an expert at bleeding them and my firend who has the same problem is a bike mechanic, a graduate engineer and used to build racing cars for a hobby (I mean he knows what he's doing).
I use Dual Controls but tried the XT levers for a month - same problem. My friend uses XT levers. Exactly the same problem. I have tried 203mm XT rotor on front and 180mm Hope rotor. Tried changing pads. Pistons dont stick. Lever pull is solid and perfect. Its just as if they decide to get an atmospheric film of moisture or grease on one of the rotors for a day then its gone the next. When it doesnt happen they are brilliant and can lock with one finger, when it does, its difficult to lock at all.
Hopes on same rotors are brilliant every time. I know two other people with same problem. Its not a real problem as one is usually working fine and overall they are light and stop you. Its just a niggle that shouldnt be there on an expensive piece of kit. Friend thinks its weak caliper design or very slight piston centering problem even though they dont actually stick at all (does that sound like a contradiction?).
LBS mechanic said this problem is why he gave up on his own XTR's (!). I would go for hopes but the DC's with rapid rise XTR are so fast at changing and totally noiseless over bumps which the old XTR mech is not even with the rubber bump stop fitted.
Should I give up and get another hobby?
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