Conti's on most of my bikes. sport contacts (28's) on the daily commute bike, with over 8000miles and no punctures, purchased 2 sets about a year ago when they where on offer on the wiggle website. came with free tubes. and a one year no puncture guarantee.. haven't used the guarantee, and the spare set are still in the loft...still have loads of life left in them... my only crib is... wet grip under harsh braking (nothing sudden and very controllable) skid/slide..