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flat tyre again

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TULL:
The machos are tubbeless but have tubes in them, also whenever i take it to the garage he checks and rims seem ok although he does suggest get some new rims and i know he has some 8 spoke steels for sale , oh no ! the £ sighns are flashing before my eyes again.

datalas:
it depends on the design of the tyres to some extent.

We used to have a set of [brand ommitted] tyres on our series 3, these were a tubeless tyre, however due to using series wheels we had to stick tubes in them.  This is where we experienced problems, the interior wall of the tyre was rather lumpy and would wear through the inner tube when the tyre flexed and rubbed against it.

Having said that, if it is consitantly one wheel you are having touble with this would indicate either the tyre, tube or rim.  Since there are three levels of expense here I would suggest trying a new tube, followed by a replacement rim (even a borrowed umpteen hand one)/

EvilEd:
Whenever I have had this, it's always been the rims of the valves.

Get the tyre off and lay it flat, now, you need some waching up water that is not too bubbly... run some round the rim and look for bubble... on one of my old BFGs it was only a bubble every few minutes (tyre took about 3 weeks to loose 5lb) you can put water in the valve too to see if that's leaking. if no joy, turn over and check other side.

If it's that, then cleaning the rims and re-laquering them can help (wire brush, then VERY fine sandpaper and then polish and laquer them.

Tyre places also have a rubber compound that they can use when mounting the tyres to seal minor imperfections. it's expensive so they don't like using it, but if pushed, they will :)

If you are using innertubes, Then it's a puncture or the valves...  Not sure if you can get the "Silk" liners like you used to on pushbikes to prevent the innertune rubbing?

BRO:
Anyone used Punctureseal http://www.punctureseal.com or anything like that - looks like a good solution for a slow leak and protection for blowouts too...

I was planning to get it done for my Motorbike.



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Thrasher:
I paid a lot of money to have something similar put in mine, then paid an equal amount to have it removed :(

Think "liquid in tyres" :(

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