In 4000 miles I've had no problems with the OE tyres including a 280mile trip in torrential rain.
3,700km on mine including the rain, no problems whatsoever. I don't cane it everywhere and ride cautiosly in the wet though.
250X7 (first bike 17 years old, T-Boned it in 3 weeks), CB250K4 (needed wheels), CB350K4 (last wheels needed replacing, ran engine without oil after rebuild, DOH!), T500 (didnt handle, didn't care, 2-stroke smoke - EPIC!), 883 Sportster (oh dear, mistake), 1340 Lowrider Covertible (stolen before a year old), Daytona 1200 (heavy, 147BHP mad lump), DR350 (reliable small thumper), CRF1000 (love it)