Copyright 2003, Roadracing World Publishing, Inc.

Roger Lee Hayden turned the fastest lap time among 600cc riders Wednesday, the final day of Dunlop tire testing at Daytona International Speedway.

In warm but windy conditions that slowed all riders’ times, Hayden turned a 1:53.040 on his new Kawasaki ZX-6RR.

According to Kawasaki team members, the extensive changes in the 2004-model Kawasaki ZX-6RR engine have already resulted in a five percent horsepower gain over the team’s 2003 racebikes, and the 2004 racebike is largely undeveloped.

Adding more credibility to the newest Kawasaki, Tommy Hayden was second-fastest on his ZX-6RR Wednesday with a 1:53.167, faster that all three of the factory Yamahas YZF-R6s.

Unable to do further testing on his ZX-10R Superstock bike, Attack Kawasaki’s Josh Hayes took teammate Tony Meiring’s ZX-6RR out for a stint this morning, found the bike to his liking and said he missed racing 600cc machines.

Hayes will race Superstock and Superbike on Attack Kawasaki ZX-10Rs, according to team owner Richard Staboli.

American Honda’s Miguel Duhamel continued testing his CBR600RR Formula Xtreme bike Wednesday, but Erion Honda has loaded its FX racer into its truck and is preparing to leave the Speedway at the end of the day.

Teams broke for lunch at approximately 12:20 p.m. local time. Testing will resume later in the afternoon.

Wednesday morning lap times (as provided by AMA Pro Racing Timing & Scoring):

1. Roger Lee Hayden, Kawasaki ZX-6RR Supersport, 1:53.040
2. Tommy Hayden, Kawasaki ZX-6RR Supersport, 1:53.167
3. Jamie Hacking, Yamaha YZF-R6 Supersport, 1:53.168
4. Aaron Gobert, Yamaha YZF-R6 Supersport, 1:53.194
5. Damon Buckmaster, Yamaha YZF-R6 Supersport, 1:53.500
6. Miguel Duhamel, Honda CBR600RR Formula Xtreme, 1:54.208
7. Aaron Yates, Suzuki GSX-R600 Supersport, 1:54.709
8. Tony Meiring, Kawasaki ZX-6RR Supersport, 1:55.448