'11 ZX10-R purchased new 7/1/11, 34k kms (5 track days), been through six Pirelli Diable Rosso Corsa (DRC) 190/55/17 rears and five DRC 120/70/17s plus the set of BT016's that came as OEM. Ready for a new front right now and a rear in perhaps a thousand kms/one more track day. Been paying $505-565 fitted for a set. I'm loving the DRCs on the track (Broadford/PI), as has been mentioned elsewhere at the end of a PI session they're like duct tape: sticky as a stick. Whilst I've been riding all winter and at an often spirited pace I've had some trouble getting them to temp on the road. Been running 36F, 42R cold (granted, too high for the twisties) and reduced the rear to 40 cold on occasion on the road & for the track between 32-34 hot with warmers at 70C. Had a few rear squiggles at CSS#2 (wet track, very cold surface, cold tyres, no warmers) and a couple of heart in mouth moments on Reefton (leaf litter/twigs), certainly I'm no expert and have a long way to go, otherwise absolutely no complaints on the grip level. I don't think mileage is good though as attested to by the number of tyres I've gone through. Here's what the right hand side DRC looked like after Broadford (warmers @ 60C, cool day/track): Click to enlarge -> Here's what the left hand side of my second last DRC looked like after PI (warmers @ 70C, warm/sunny day, cool/warm track, suspension set up by SWRacing): Click to enlarge -> Been reading about the Dunlop Q2s/Sportsmarts, thinking of trying these as my next set mainly for the increased lifespan I'm hearing about. A.