deflation

2004/5 Tuono fighter Hallo, A while back my front tyre let itself down, I had been going quite fast, there was nothing in the tyre, and it was fine after I re-inflated. Thought not much more about it. Last week, newish front tyre did the same thing, although this time I had arrived home...

Went for a blast today on the Ape & my mate was leading on his CBR1000 got up to silly speeds, then when we slowed down for a roundabout his steering went all weird, pulled over & his tyre had gone down to about 16psi. Limped to the café called the RAC thought he'd got a puncture but when they...