Looking to add more manufacturers to the traveling circus, AMA Pro Road Racing has homologated the Aprilia RSV4 Factory ABS for racing duty, though with one interesting caveat. Instead of giving the 999cc Italian V4 a birth in the AMA Pro Superbike class, the RSV4 Factory has been homologated instead to race in the AMA Pro Supersport.

With Aprilia USA lacking a 600cc machine and the budget necessary to race at the factory level in the Superbike class, AMA Pro Road Racing officials have come to a compromise with the Italian company on how it can enter the American road racing scene with its current equipment, and hopefully thus spur its sport bike sales.

AMA Pro Racing continues to show that it’s homolo-flexible when it comes to supersport regulations, as America’s premier road racing series has homologated the 2013 Kawasaki Ninja ZX-6R and its 636cc engine displacement to compete in the supersport class (the new ZX-6R is also homologated for the Daytona Sport Bike class as well).

“Kawasaki has a strong racing heritage,” said Kawasaki Racing Senior Manager Reid Nordin. “Our Ninja brand is synonymous with success on the track. When we brought back the 636cc engine we knew there would be interest in racing and we have taken the steps necessary to have the new Ninja ZX-6R on the track and out front in 2013.”

A factory-supported MV Agusta team will be present at the 2013 Isle of Man TT, as Jack Valentine (former Team Manager of the Crescent Suzuki World Superbike team) has lined up TT race-winner Gary Johnson to race the MV Agusta F3 675 in the TT’s two Supersport races.

A well-respected team operator, Valentine’s ValMoto team was responsible for the successful return of the Triumph’s presence in the Supersport class at the Isle of Man, and the Brit has the same designs in store for MV Agusta — with Gary Johnson tapped to ride the F3, ValMoto comes to the Isle of Man TT as a potent entry.

Debuting today at the MV Agusta HQ in Varese, Italy, the MV Agusta Corse ParkinGO supersport team has unveiled its MV Agusta F3 race bike. The Italian company’s formal return to the World Superbike paddock, MV Agusta Corse will begin its racing project in supersport, though a return to WSBK racing with the MV Agusta F4RR is featured on the team’s road map.

To do the riding duty, the the MV Agusta Corse ParkinGO team has tapped Roberto Rolfo and Christian Iddon to do the honors. The two riders will have their work cutout for them in the World Supersport Championship, having to develop a brand new race bike, but at least its a very good looking one.

When Dorna took over control of the World Superbike Championship, speculation began to fly what the changing of the guard would mean for motorcycling’s premier production-based racing series. Always seen as the annoying little sibling to the prestigious MotoGP World Championship, many have expected to see Dorna cut out a clearer distinction between the two series, with WSBK returning to machines that are closer to stock-spec, while MotoGP continued to play with its CRT formula.

Now, reports out of Europe say Dorna is set to kill the 600cc and 1,000cc superstock classes in 2014, leaving only the superbike and supersport classes for 1,000cc and 600c based racing, respectively. Looking to switch to a three-race format, like in MotoGP, the World Superbike Championship would reportedly add a 250cc production-based class, which would serve as the development class for the series, and would help bolster the new fleet of small-displacement sport bikes OEMs have producing recently.

It is hard to believe that the Honda CBR600RR will turn five-years-old in 2013, but the Japanese supersport has long been neglected in the Honda line-up. Actually, the phonomenon has not been limited to the 600cc sport bike, as the Honda CBR1000RR has also been left to whither in the sun for far too long. With the 1,000cc superbike getting a makeover for 2012, it looks like the CBR600RR is finally getting its turn, as well.

As such, the 2013 Honda CBR600RR gets a set of new fairings, which we must admit are rather fetching (the bodywork is good for a 6% reduction in drag, according to Honda). The Japanese company also says that the revised front section improves RAM-air, and thus midrange torque. We won’t being to tell you what’s wrong with that statement, but suffice to say the design helps the 599cc motor breath better.

Other changes include a revised ECU package, 12-spoke wheels, Big Piston forks (BPF), and re-tuned rear shock. Honda is even throwing its “Electronic Combined Anti-Lock Braking System” (C-ABS) on the 2013 CBR600RR. Wowzers. Colors are Red, Repsol Edition, & White/Blue/Red. Pricing hasn’t been released yet, which surely means a price increase is headed the Honda CBR600RR’s way.

UPDATE: The folks at TMCBlog seem to have some screen grabs from a walk-around video with the new ZX-6R. More photos attached after the jump.

Kawasaki only has a few more days until its big launch in New York City’s Times Square, so depending on how you look at it, Team Green has only a few more days to keep its new bikes under wraps, or Team Green has only a few more days to leak out hype-building photos of its new bikes. We’ll let you make the call on that issue, but today’s big Kawasaki news is a leaked photo of what appears to be the 2013 Kawasaki Ninja ZX-6R.

Monday’s racing at the 2012 Isle of Man TT started with the Monster Energy Supersport TT race, as the 600′s got their first of two races around the Mountain Course this fortnight. Race 1 for the supersports proved to be a thrilling four laps for TT fans, as Bruce Antsey brought his Kiwi A-game to the race, making ground on the field throughout the race, and winning with just .77 seconds separating him from Aussie Cameron Donald — one of the closet margins ever in TT history.

Now that the 2012 model year motorcycles have debuted (though we still expect a few mid-year releases), the speculation can now begin for the 2013 model year machines. Wasting no time in this process, the Italian press is afire with rumors of a Ducati 799 superbike model to compliment the recently released Ducati 1199 Panigale.

A rumor of this nature, this early in the year, is certainly an interesting one. There should be little debate over the fact that Borgo Panigale has a supersport variant of the 1199 superbike already figured out, tested, & ready for prime time, and our Bothan spies confirm just as much to us. The details of such a bike though, now that’s where the devil resides.

Rewind back to the 2011 Isle of Man TT and the Monster Energy Supersport 2 race, where a very soggy set of TT riders nearly mutinied against Race Direction for wanting to start the race under torrential conditions. With only the fastest of the riders making it onto their second lap, better discretion prevailed as the red flags came out and called the race cancelled due to weather (aiding that decision was the retirement of Gary Johnson and injury-free crash by Keith Amor).

With the top riders collected at Ballacraine, there were more than a few live cameras on the gathered motorcycles, which brings us to this video of Guy Martin, John McGuinness, Cameron Donald, Bruce Anstey, Michael Dunlop, Dan Kneen, and Chris Kinley of Manx Radio discussing the day’s ride. Trading stories on how racer nearly killed themselves on the past lap and a quarter, what surprise sus in this video isn’t the content, but instead the carefree attitude each rider has towards how close they came to meeting their maker. A funny breed these TT racers are (don’t even get us started about the Dunlop brothers).