I put valve caps on a few months ago, silver richbrook style, went to check the tyre pressures at the weekend and they are solid. I have tried gripping the valve with pliers / selfgrips and spanner on the cap but no go, the rubber around the valve split a bit so I gave up. I gave them a good douse in WD40 an hour before I tried.

Any suggestions on getting them off so I can check my pressures (I dont have a problem with pressure, just annoying me that I can`t get them off.

Went to a tyre place and they said that the tyres would have to come off, new valves and balance, £70.00, ferk that ...

I don`t want to risk damaging my alloys in the process either, I thought maybe cut them with something, but what .