The Eighth Man
Senior Member
I have new wheels with Bontrager Race Lite Hardcase Tyres (700c x 28c) fitted always pumped up to 120 PSI and seem to get a puncture every time I go out. 


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It's the most likely cause. Use chalk to mark the tyre where the valve is, then find the p***ture on the tube and using the chalk mark find where on the tyre it happened. Run your fingers carefully around the inside of the tyre to find the sharp.Old Walrus said:Check, check and check again for something small and sharp hidden in the tyre carcase. It took me a couple of weeks to wheedle out a tiny shard of glass.