MTB - Tyres (front) distoring... is it me?!
Discussion
Just wondering if I'm alone on this.
The bike: full suss, with 203mm rotor on the front.
First time this happened was on the original tyres the bike came with - Continental Mountain King... I really rated them, great tyre. But then I noticed it (front) wasn't rolling straight. At first I thought I'd buckled the wheel as this was just after a trail ride. On closer inspection the rim was still true but the rubber seemed to have shifted on the casing.
Chatting to a few guys I was riding with at the time and they said that tyre was prone to doing that.
So I replaced it with another brand / model I've had no problem with before: Maxxis High Roller 2 (the soft compound.. something like the 3C). Took it off the rim to top up the tubeless and noticed that won't go back on straight either.
I've now tried all sorts of combinations / trying it on another rim, but no luck - its distorted in the same way the Continental did. This is quite annoying because it looks virtually brand new and cost £60ish.
Just to rule the rim out totally, I'm now running the old rear tyre on this (front) rim - its totally true and mounts fine.
I have now changed the 203mm brake rotor down to 180mm - just because I felt it was over-braked anyway and the rotor was forever rubbing on the pads. Would the extra power of the 203mm rotor have been causing this? (I'm pretty sure it won't be the case).
Just seems odd its happened twice on the same bike / same wheel. Yet when I've run the same make & model of tyre on my hardtail MTB - no problems at all.
The bike: full suss, with 203mm rotor on the front.
First time this happened was on the original tyres the bike came with - Continental Mountain King... I really rated them, great tyre. But then I noticed it (front) wasn't rolling straight. At first I thought I'd buckled the wheel as this was just after a trail ride. On closer inspection the rim was still true but the rubber seemed to have shifted on the casing.
Chatting to a few guys I was riding with at the time and they said that tyre was prone to doing that.
So I replaced it with another brand / model I've had no problem with before: Maxxis High Roller 2 (the soft compound.. something like the 3C). Took it off the rim to top up the tubeless and noticed that won't go back on straight either.
I've now tried all sorts of combinations / trying it on another rim, but no luck - its distorted in the same way the Continental did. This is quite annoying because it looks virtually brand new and cost £60ish.
Just to rule the rim out totally, I'm now running the old rear tyre on this (front) rim - its totally true and mounts fine.
I have now changed the 203mm brake rotor down to 180mm - just because I felt it was over-braked anyway and the rotor was forever rubbing on the pads. Would the extra power of the 203mm rotor have been causing this? (I'm pretty sure it won't be the case).
Just seems odd its happened twice on the same bike / same wheel. Yet when I've run the same make & model of tyre on my hardtail MTB - no problems at all.
When I've had this I think it was from damaging the sidewall by running the tyre too soft. I remember landing from a jump at speed and feeling the tyre squirm a bit, sure enough, next time I took it off and refitted, the tyre was 'buckled'.
I upped my pressures a bit and it didn't happen again
I upped my pressures a bit and it didn't happen again
It could also be a fitting issue.
Do you lubricate the tyre bead, or at least, bounce and rotate the wheeel as you inflate the tyre to ensure it locates evenly on the rim ?
Badly fitting the tyre can give you an optical effect that the wheel itself is out-of-true, when it is actually the tyre being out of position on the rim.
Do you lubricate the tyre bead, or at least, bounce and rotate the wheeel as you inflate the tyre to ensure it locates evenly on the rim ?
Badly fitting the tyre can give you an optical effect that the wheel itself is out-of-true, when it is actually the tyre being out of position on the rim.
BOR said:
It could also be a fitting issue.
Do you lubricate the tyre bead, or at least, bounce and rotate the wheeel as you inflate the tyre to ensure it locates evenly on the rim ?
Badly fitting the tyre can give you an optical effect that the wheel itself is out-of-true, when it is actually the tyre being out of position on the rim.
Yes - its been on and off more times than I care to remember, even tried fitting it against the direction of rotation just to check - but the distortion always comes out on the same part of the tyre.Do you lubricate the tyre bead, or at least, bounce and rotate the wheeel as you inflate the tyre to ensure it locates evenly on the rim ?
Badly fitting the tyre can give you an optical effect that the wheel itself is out-of-true, when it is actually the tyre being out of position on the rim.
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