If anyone's interested IMO, this is my first year with Pirelli Diablo Corsas and they seem to be holding up a lot better than the Pilot of last year. These tires are not Pirelli's highest performance tire but rather their budget minded standard for sport and sport touring tire.
The rear has a slight flat in the middle but you really have to line up your eye with the tire to see it. Definitely can't feel it riding and that is what usually ends my love affair with any tire. I haven't really looked closely at the front but it hasn't given me a reason to yet. They track nicely if anything they want to oversteer a bit if I'm not paying attention. I have around 4,000 miles on them so far this year. Most of that is 60mph+ one up riding. The Pilot got a lot more two up riding along with a 2-up 1,000+ mile trip to the U.P. of Michigan which I'm sure had a bit to do with the accelerated wear but that tire was wearing bad long before then.
Another thing I'd like to note is the wet weather traction. These tires have deep grooves that fan out from about an inch from the center of the tire which help keep water out from under the tire when cornering which is great. However, the center is basically a slick for all intensive purposes which may be good for dry performance once the tire is warmed up but in the rain it is a different story. Don't get me wrong the tires grip well in all conditions just don't use any rear brake when turning in the rain. The first time I did this I had been riding on the tire for about a month and it hadn't rained yet so I wasn't really expecting it to behave all that differently. Yet as I touched the rear brake for a hard left turn the tire completely locked up and the bike continued forward about five foot further than I had planned before I could jerk my foot off. Startled I tested it several more times and the slightest brake pressure sent the back end fishtailing wildly until I let off and everything calmed down. I attribute this to no grooving or siping at the center of the tire. But you also have to take into account that it hadn't rained for weeks and when that happens the first time the roads get real greasy. It's not something that turns me off that much - I shouldn't be using that brake so much anyways and now I don't so that I'm well practiced when it rains. It's just something I felt the need to note. I have never had the tire slip cornering 'hard' in the rain which is where I'm most concerned about traction not when I'm upright and can easily just drop the throttle.
It should be interesting as the end of the riding season approaches and we start getting more inclimate weather here in the midwest just how well these tires, being well worn, carry me back and forth to work. I still have another new Corsa rear which I thought I'd have mounted by now. That could either be a good thing or a bad thing. Fall will decide that outcome.
2004 Electra-Glide Classic Peace Officer Black, Rineheart true-duals, HID with Hella headlight bucket, Goodridge SS brake lines, saving for DJ PowerVision FI controller and K&N large cap. kit.
2004 Suzuki Katana 750 (wife's but doesn't ride anymore) (fo sale), Hindle exhaust, K&N air, Dark metallic blue w/ blue led accent lighting.
1983 Suzuki GS750ES under construction(perpetually)
