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Untrue Wheel


emery

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On my bike the back wheel sometimes goes to the side like when if I hit it to hard on a side it goes to one side so the magura pad touches and stops the bike from moving.

What I want to know is this that is untrue as I heard someone in a topic say about untrue and true wheels.

And when it does do this mI bang the whell on the side it touches and makes a loud click noise and it works.

The wheel does move from side to side not like buckeled though as it moves when I move it myself is it the bolts or hub that makes it loose I've tightened the hub bolts till they won't turn no more.

What is it. (Y)

toby (Y)

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I get this quite a lot as well, it could be the actual hub......what hub is it that you run?? Mine is an onza non-sealed hub and it wobbles in the wind! If thats not the problem then I reckon it maybe your chain tensioners coming loose....check your chain and if it is any tighter or looser than you set it as then you'll have your answer. Just try and keep your chain tensioners tight (Y)

Jackery

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Right. A true wheel is basically where the rim is perfectly straight (true) with no bends, flatspots etc. An untrue wheel is the opposite, not fun when you run a rim brake.

If you run a hub with loose ball as opposed to sealed cartridge bearings, chances are high that your cones are loose. "Play" (wobbling) in the bearings is the result of this. If this is the case, there will be two slim nuts on the hub, one on each side of the axle against the hub body. Get a pair of spanners (specifically designed, slim 'cone' spanners available from your local bike shop make this easiest but any wrench will do) and tighten these two nuts up evenly until the wheel stops wobbling from side to side. Try to find a compromise where the wheel will turn without too much resistance but the hub wont wobble (depending on the condition of the bearings, you may not be able to get a totally free spinning hub with no play in the bearings). Be careful not to overtighten or you WILL crush your bearings, ruining them. I recommend loctiting these nuts to stop them working loose so easily. If loose cones are the cause but tightening the cones doesn't sort it out, you'll need new hub bearings or a new hub. If this isn't the cause... I don't know.

Hope that helps (Y)

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i had a similar problem on my mtb (only hust fixed) turns out i had bent my axle, and then(!) i had just got out bike shop, i dropped of a curb and it went agen so they played around with the hub and HEY PRESTO, so to your lbs wid a bit of luck they can be magic for it!

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thats doe help loads with the play thing and yer the clips on my maguras are crap and aswell I don't know what its called but I'll try to explain.

Theres a bit which you can unscrew and so on and it goes firts in the inside of the callipars to stop the brake coming out of the callipars well I've found outit is just this probally where it is fully loose and I never thought nothing of it but it makes the brake come out and in too far. If you know what I mean should I glue it down or is it really bad. And none of my above has really nothing to do with it but it still helps as my wheel iss wobbly.

(Y)

toby (Y) (Y)

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