blushark Posted April 4, 2009 Report Share Posted April 4, 2009 i have an odd and irritating problem. my both tires seem to be laterally asymmetric.take a look at these photos to illustrate.the front is pretty obvious: left side is just lower than the right ("curves" more). it may look as if it's due to photographing angle, but i assure you it's the same in reality. this i can almost cope with (although i have a weird feeling it causes bike to handle in a weird way, sort of pulling to the left).the rear is a bigger problem because of the very tiny tire clearance. the shot is at a slight angle, but i illustrated with arrows the clearance in reality. it has the same kind of this weird asymmetry. because of it, it scrapes the frame and makes sounds and due to friction. it stops the wheel in one revolutions as well.also, the clearance changes as the wheel turns, as if the tire is not centered (the rim is centered).i can ride but it's grating my nerves in a fine dust. it's seems to be getting worse as the time passes, but the rear wheel is only a few rides old so i'll have to get back to you on that.i need to make clear that:1) both rims are perfectly centered (done one week ago), rear rim has brand new spokes and hub2) both inner tubes are new and have not been patched3) both tires are brand newfront tire is continental vertical pro 2.3" (on Alex TD17), rear tire is continental mountain king 2.4" (on TryAll drilled 47mm).is it a continental thing? can anyone shed some light on this, what to do? it's driving me crazy!thanks! Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 4, 2009 Report Share Posted April 4, 2009 It's better for turning on singletrack. *Not necessarily true Quote Link to comment Share on other sites More sharing options...
Rusevelt Posted April 4, 2009 Report Share Posted April 4, 2009 that is weird Just wondering if adam@tartybikes can shed any light on this. Quote Link to comment Share on other sites More sharing options...
staphan Posted April 4, 2009 Report Share Posted April 4, 2009 (edited) I have the same problem with my front tire, it's curved more one one side and I can't figure out how to correct it Oh and it's the same tire too, I also ride Continental Vertical 2,3"... Edited April 4, 2009 by staphan Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted April 4, 2009 Report Share Posted April 4, 2009 It's pretty impossible to make a perfectly shape tyre. Seeing as they're made in sections, then bonded together... or something.My tyres wobble about a lot, but my rims don't. I'm sure everyone's do too! Nothing to worry about really. Quote Link to comment Share on other sites More sharing options...
blushark Posted April 4, 2009 Author Report Share Posted April 4, 2009 It's pretty impossible to make a perfectly shape tyre.My tyres wobble about a lot, but my rims don't. I'm sure everyone's do too! Nothing to worry about really.i understand that, but during years i've had a lot of tires, different rims etc., but never anything like this. and then 2 tires at the same time! i'm not talking about small imperfections, this is ridiculous.worst of all, sound rear wheel makes when turning is awful. sounds like bike is coming apart. very hard to concentrate on trials with a tire like that.i'd buy a new tire if i was sure it would fix the problem.is it just that continental's quality control is going down the drain? Quote Link to comment Share on other sites More sharing options...
blushark Posted April 5, 2009 Author Report Share Posted April 5, 2009 ok, i talked with riders in my area and it seems that it's a bad continental batch, i'm not the only one having this problem. it seems the shop where we bought them deliberately ordered products with errors. what a**holes.thanks everyone, i guess i'm getting new tires after all. Quote Link to comment Share on other sites More sharing options...
Muel Posted April 5, 2009 Report Share Posted April 5, 2009 All tyres wave around a bit, as long as it doesn't rub the frame it'll be fine.Even then it'll be fine, my tyre is slowly eating through the frame because when I pedal hard, it flexes the rame over and rubs the tyre. Quote Link to comment Share on other sites More sharing options...
DYAKOV Posted April 5, 2009 Report Share Posted April 5, 2009 (edited) Have the tyres been put on another (not obviously but wider) rim?..if so, they can be a bit stretched and the right side is trying to come out and do you squeeze the tires to form them before pumping..it may help Edited April 5, 2009 by naset000kzk Quote Link to comment Share on other sites More sharing options...
blushark Posted April 5, 2009 Author Report Share Posted April 5, 2009 muel> it's rubbing the frame quite a bit once per wheel revolution. for a quick fix, until i get a new tire, i'll just cut off few protruding edges off the tire.naset> it's new tires on two very different rims (front is disc rim, narrow, rear is koxx ultrawide (47mm)). it tried to form them before inflating, while inflated and while hyper-inflated and nothing helped. Quote Link to comment Share on other sites More sharing options...
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