Hi Dave,I had Bridgestones on my cruiser when it was new and they lasted 11,000km, but I switched to Avon Venoms and have had several sets now [total mileage 114,000km]. I always fit them as a set and they have worked very well in all weathers, lasting 17-19,000km. My last set did 20,000km, but they were pretty worn by that time!