I bought a Puncture kit from Hein gericke last year,(just in case)
I fitted a new rear tyre to the 749 just before the trackday at snetterton and the following weekend the bike was booked into Moto-Italia for warranty work.
On the way I got a puncture in the rear tyre (after only 600 miles, it breaks your heart) I fixed the rear tyre with a plug as per instrutions and it worked
it got me to Italia a little late and a little slower but it worked.
Now I wound't be without one.