The stock Dunlop Qualifier rear tire was worn square after 5500 miles, so I took the opportunity to upgrade to better rubber. In a previous update I wrote that suspension work was the best bang-for-the-buck alteration I'd made. Well, I'd like to amend that statement: Installing a set of Dunlop Sportmax Q2s ($121.99 front, $156.99 rear; www.dunlopmotorcycle.com) was no less an improvement. I couldn't believe what a difference the new buns made! The CBR felt planted everywhere, and was much easier to tip into turns. I was also impressed with their wet grip, which combined with the bike's Combined ABS made riding in the rain infinitely safer. The Q2s are wearing faster than the stockers, but they're still going strong after 4000 miles so I would definitely buy another set.