I have a slow puncture on my front near side wheel at 35 psi i lose 15 psi over 2 days . so i took the car to STS and the fella said that he could not take the tyre off to re-valve it because the tyre was the wrong side for the rim , company policy ! i said i bet you'd take it off i wanted to buy a new one he said YES , hahaha (not at your prices mate) but he would have to put a bigger tyre on it, FAIL . so anyone in the medway area help me out please ? oh and it passed it's first MOT today no problem !? go figure !!