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Post by richmayn on Jul 31, 2018 13:17:05 GMT
Any suggestions as why my back tyre loses pressure, even when the bike is left standing? About 10psi per week seems to be the rate. It's done it for a while, both with new tyres and the previous set of tyres, which would suggest it's not sealing with the rim properly. Other than regular checking, is there anything I can do?
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Post by m40man on Jul 31, 2018 13:35:05 GMT
Hi Rich, assuming they replaced the valve last time you had a new tyre, then yes the rim seal is prob poor.
But check for proper tyre leaks first.
Ideal thing is take off the tyre & scrub the wheel rim with a nylon scourer to remove any contaminants, then refit the tyre.
Lazy bodge would be to put some puncture sealant in.
Bring it round mine if you like & we can clean it & refit ( & replace the valve whilst we're at it.)
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Post by cam7777 on Aug 1, 2018 9:19:28 GMT
Tyre mounting paste goes crusty and as m40man suggests, the wheel rim should be cleaned when a new tyre is fitted. I use a wire brush.
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Post by richmayn on Aug 1, 2018 11:24:08 GMT
Thanks for the responses and the kind offer. I may well take you up on that if i can't sort it myself.
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Post by sledgegreen on Aug 3, 2018 16:29:58 GMT
Have you checked that the valve itself is OK? I mean the little widget with a spring that goes inside the valve stem. And fully screwed into the valve stem?
Changing the valve is a lot less effort than removing and re-seating either the tyre itself or the valve assembly, so I would start with that.
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