I have a mountain bike with 2 sets of tyres, a road set and off road set, when I switch between them about 1 in 3 times I seem to get a puncture, and I can't see why? I've gone though 4 innertubes now doing this.
So I'll inflate the tyre, cycle around for 30-40mins then I'll notice something wrong, and it's almost flat?
Am I doing something wrong? I deflate the tyre, flick off the tyer and innertube (using a plastic thingy from Evans, so no sharp bits there), put the innertube inside the other tyer, put both back on the wheel and inflate.
Any help would be appreciated, if I don't reply right away I'm probably walking down the cycle shop buying another innertube. :-)