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If a tire fits very easily on a rim, is this unsafe?
OTOH, if it is very tight, can this damage the bead/sidewall/tire?

Also, I have an old clincher (vredestein) where the bead is flaking off.
Is this unsafe.
 

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Not much to worry about

steel515 said:
If a tire fits very easily on a rim, is this unsafe? OTOH, if it is very tight, can this damage the bead/sidewall/tire? Also, I have an old clincher (vredestein) where the bead is flaking off. Is this unsafe.
1) no, although some will worry that if you flat on a downhill, that "looser" tire may have a greater tendence to come off the rim. That has not been my experience, though I am thankful to not have run that experiment very often.

2) no, the force required to break a tire bead is huge, and you are not going to exert that kind of force while mounting a tire

3) Possibly, if it really is crumbling seriously. OTOH, if it is just a little bit of surface rubber coming off, then no worries.
 
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