I had continentals on mine which had no wear when I bought the bike but had been on for many years. I persevered with them whilst I was running the engine in and tinkering, but they were a bit dangerous and uninspiring (the front especially), but have just replaced them with the BT45’s and even just in the short trip home from the shop I can feel the difference….will be keen to give it a good ride and see how they go over time.
I run K81’s on my other bikes.
Cheers
Peter.