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@pirat
Kam, I was getting same prob as you as well as about 3 punctures a week on my slick continentals, so changed to some Bontrager Hard Case 700x23 which have the kevlar beading (2 months so far no flats) as well as a strip down each side of the centre with a slight grip to it, leaving the centre slick. I run these at 120psi and have had no traction problems even on the slick and shiny cobbles of Vic Park. Also the gripped stripes are a subtle grey which matches my bike = bonus!