I was a Bridgstone man for years, the last I had was the T31 on my old zzr600. Then tried Pirelli Angel GT2 as they were on offer to replace the standard Dunlops on the z900 at 2400 miles. The dunlops were not worn out but were shocking in the wet. The Pirellis lasted 10,000 miles, really good, then moved to the Metzeler Roadtec se01, even better. I'm an all year commuter, track days, IAM observing, foreign tours and these Metzelers are very good. 3000 miles in and no discernable wear. Bridgstones are ok but found the front would wear the shoulders away by 5000 miles & the grip in cold weather also dropped off .