"I usually ride Continental GP4000s but i thought i would try something different. I had read mixed reviews - most would agree they are fast tyres but there are a fair few who claim they are prone to punctures. I never punctured on my GP,s (3 sets) and assumed those who had on the these were just unlucky. In the interests of free speed i bought some. First ride and about 20 miles in the back tyre blew (sidewall) whilst i was doing 40+mph. I have just ordered a new set of Conti's."