I think it sounds like some trainee has done the job. I'd certainly not feel happy about it.

It might be some new sort of repair. In which case I'd have expected them to explain it to me. But if that was the case, it should cost a hell of a lot more than £8.

It is not clear from your post if the nail actually pierced the tyre right through. It may only have pierced the rubber slightly on the outside. Also, it may not be obvious if the tyre has lost air given it is a "runflat". To the uninitiated, such a "repair" at a cheap price maybe a good result as well as for the tyre fitters.

Outside patch does sound a bit dodgy

OTOH, here in Taiwan (and, more surprisingly, I'm told also in the USA) you can get very cheap kits (quid or two for about 8 plugs with tool) which allow you to shove a sticky "self vulcanising" string thing in the hole. Some of it protrudes and flattens out on the outside when you run the tyre.

www.amazon.com/Slime-1034-T-Handle-Tire-Plug/dp/B0...K

(that one has rubber solution but I've never used that)

You used to be able to get these in the UK, because they appeared in a Triumph Herald manual I bought in the vain hope of maybe someday getting the car to go with it,

I'm quite sure the UK tyre industry would strongly disapprove of those too, but I and many other foreigners here have used them extensively with complete success.

I've never used them with runflats though, never having had runflats.

Edited by edlithgow on 24/12/2017 at 08:27