> The only time I ever had a
> tube fitted was when I had to leave a tyre for a repair, the
> fitter patched
> the tyre then fitted a tube for good measure, I picked up the wheel went
> home fitted it to the car and went on holiday towing a caravan.
> In my haste
> I didn't notice the valve stem was wrong (tube type) and after about 100
> miles at 60 mph the thing blew out. Lucky not to loose the combination off
> the black stuff, the tyre carcass was quite hot and the tube was in about
> 500 bits.
Sounds like you fell victim to exactly the effect I was talking about ...
putting a tube in lowers the load-carrying capacity of the tire, due to the
increased heat generated. Towing a caravan puts a lot of extra load on the
tire (it's not unusual to overload them that way anyway) ...
Randall
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