Me too. I'd change tyres if they were two years old or more. Nothing beats new tyres, feels like you've got a new bike, and there cheap as chips nowadays. I got a pair of pirellis for me zzr1100 for £128 from " round and black" on eBay, local tyre place fitted And balanced them both to loose wheels for £20, £150 gets you peace of mind , even if you don't ride in the wet your bound to get caught in the rain sometime, and modern rubber is unbelievably good on wet roads now