I have 8 year old Avon SM's on mine, done just 807 miles, there is not even the slightest of side wall cracking, so I might just be lucky, but I will keep a beady eye on them and the least bit of problem or signs of, they will be off!
Mine are Avons but made in England, or so it says on the tyre.
Sorry, tire, you say 'tomato. we say tomarto'.
Lotus, I had a Suzi GT 250 M, I got rid of the O.E. Bridgstones ASAP, they were crap and dangerous back in '76, and put a set of Dunlop Red Arrows, they were worse than the B.S!
I put a set of Avon (original) Road Runners on, and they really suited the bike!
The new Road Runners seem to be of a different pattern now though.