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.

Fresh from Italy, we get our first glimpse of the 2013 Aprilia RSV4 Factory WSBK race bike in its new livery. While the uniforms may look the same, the men wearing them have changed to some extent, and in many ways so has the Italian brand’s racing strategy.

Building its previous team around Max Biaggi, the previous incarnation of Aprilia Racing catered to every whim of The Roman Emperor — read into that as you will. But now with Biaggi’s retirement from motorcycle racing, Aprilia is forced to replace tried-and-true talent with two up-and-coming stars.

Out from behind Max’s shadow, Eugene Laverty is expected to impress this year, having shown himself a formidable rider on the RSV4 Factory last season with his sixth-place Championship finish. Seventh in the Championship himself, Sylvain Guintoli will join the Irishmen, after coming off a tumultuous season with Liberty Racing. With three race wins and six podiums, Guintoli made a definite impression, especially when he was on the slower Ducati.

With both of Aprilia Racing’s WSBK riders starting to come into their own, the Italian brand is showing a lot of growth potential in the premier production-motorcycle racing series. Time will tell on the results, but we expect a bevy of podiums from the Aprilia riders this year, and maybe a win or two. Mas photos after the jump.

After getting dumped by Ducati Corse, which will be running its own factory team, Althea Racing has made the unsurprising switch to Aprilia hardware for lone rider Davide Giugliano, as they gear up for the 2013 World Superbike Championship season.

A top team in the WSBK paddock, Althea has potent prospects for next season with the Aprilia RSV4 Factory, especially as Giugliano continues to gain experience in World Superbike. This announcement brings the total to four Aprilia machines on the 2013 grid: the two factory bikes of Eugene Laverty and Sylvain Guintoli, as well as Red Devils Roma’s entry with Michel Fabrizio.

Even before I met Max Biaggi in 2011, I had the sense that here was someone who takes himself and his racing pretty seriously. From the immaculately trimmed facial hair, to his manner in the pit box, to his long career as a motorcycle racer, if there is anything he takes lightly, it is certainly not racing.

Some riders are approachable, quick to smile, who naturally put others at ease even on race weekends. Biaggi is not among this group. But I didn’t appreciate just how intense he is when he’s at work until, as one of my contributions to benefit Riders for Health, I decided to ask him to sign a print I was donating at last year’s Miller WSBK round.

I had brought a matted print of Biaggi from 2010 with me, and as I approached the track on Saturday morning I considered that it would likely fetch a higher price, and thus a greater donation to Riders for Health, if it bore Max’s signature. So I set about getting that done with no idea how easy or difficult it might be.

First I approached the Aprilia media officer, a pleasant fellow who worked with me, half in Italian and half in English, to come up with a plan to approach his star rider. He suggested we talk to someone in the pit box, someone who knew Max better than he did in his recently acquired role with the team.

We descended into the Aprilia garage and found someone whose exact role I never understood, but who also liked the idea of doing something for Riders for Health. He did not, however, care to be the one to bring it directly to Max. The three of us considered the situation and appealed to one of the senior mechanics, who gave us a sympathetic look and said in gestures instead of words that he wanted no part of the business.

We stood to the side of the box, waiting for inspiration, and I wondered if the plan were doomed. Max spoke to mechanics as if discussing matters of life and death. Team members approached him respectfully, presented their concerns for his comment, and left him alone. In some garages the guys joke and there is music in the business of racing motorbikes. In Max’s garage, it’s more like a war room, its business deadly serious.

The Aprilia ART, as it has become known in the GP paddock, is so far the most competent claiming rule team package (CRT) on the MotoGP grid. Powered by an Aprilia RSV4 Factory motor that is World Superbike spec and beyond, the Aprilia ART also features a chassis that has been developed by the very same Italian company. A turn-key CRT package offered by Aprilia, if you believe the rumors circulating in MotoGP, the Noale-based company’s involvement with the ART doesn’t stop at delivery.

Rumored to be the byproduct of Aprilia’s aborted MotoGP campaign, in the World Superbike paddock the RSV4 is described as a MotoGP bike that was sold to consumers with WSBK domination in mind. Taking the World Superbike Championship in only the team’s second year in the series, Max Biaggi and Aprilia have helped perpetuate that rumor further, and currently lead the 2012 Championship as it races into Imola this weekend.

If a few years ago all the paddock gossip was about how Aprilia managed to campaign a thinly veiled MotoGP bike in WSBK, then this year the talk will surely be how the Italian factory snuck its superbike onto the MotoGP grid. Despite the irony in that statement, it takes only a casual glance at the Aprilia ART and Aprilia RSV4 Factory WSBK to see the immediate similarities between the two machines.

With World Superbike coming to Miller Motorsports Park next weekend, many eyes are on reigning champ Max Biaggi. Will Max be able to recover from a rocky season’s start to keep the title in Aprilia’s trophy case? Or will a charging Carlos Checa and upstart Marco Melandri continue to show no respect for Max’s greatness? Since his early days as a fantastic 250cc two-stroke rider, Max has had his share of disrespectful rivals.

Last year he, and the dominant Aprilia, added another star to his dorsal display of world titles. But in 2009 he ran into some trouble with Ben Spies and Noriyuki Haga. You can never fault Max for not trying hard enough–in qualifying Max held onto the throttle as he dumped the RSV4 in the Attitudes, though Spies would win both races that weekend. Whether you love him or hate him, Max gives it all he’s got.

Quite a stir was made on Tuesday when news hit the interwebs (including on A&R) that an illegal fuel pump was found on Max Biaggi’s Aprilia RSV4 Factory race bike at Assen. With World Superbike regulations requiring that the fuel system be completely unmodified from stock, the story was two-fold as it appeared something about the #1 plated Aprilia was awry, and seemingly no penalty was levied by Race Direction.

Subsequent to this news Gigi Dall’Igna, Technical Director of Aprilia’s World Superbike program, has categorically denied anything illegal about Biaggi’s fuel pump, simply stating that the only difference between Biaggi’s pump and those on Camier and Haga’s RSV4′s was the number stamped on the side…which was different on every unit. In addition to this news, Infront Media Sports emailed Asphalt & Rubber last night, and further explained the situation, also explaining that no irregularities had been found on Biaggi’s race bike at the Dutch round.

There’s been a bit of hemming and hawing regarding whether Max Biaggi would take the Champion’s Honor and wear the number one on his Alitalia Aprilia RSV4 Factory race bike in this season’s World Superbike Championship. But that speculation has seemingly come to an end now, as during the WSBK “class photo” today, Biaggi’s Aprilia RSV4 wheeled-out of the garage with the #1 plate blazing.

Reports from the World Superbike paddock suggest that Aprilia is keen to make a showing of its success last season with the #1 plate, while Biaggi would prefer to retain his venerable #3 logo, which is his current official listing with World Superbike.

The guys at the Aprilia Forum have gotten word that the 2011 Aprilia RSV4 will get an 8hp power increase, bringing the 999cc V4 motor to a total claimed output of 186hp. Also as expected by us back in June, the 2011 Aprilia RSV4 will see the introduction of Aprilia’s traction control system (ATC). The 2011 Aprilia RSV4 will make its extra horsepower by raising the cylinder compression ratio via high compression pistons, and using a different timing chains. Other changes include a different exhaust can (smaller), and gearing changes (taller: 1st, 2nd, 3rd, shorter: 4th, 5th, 6th, with a larger 42 tooth rear sprocket).

Aprilia is either confident or cocky, because according to MCN, the Italian manufacturer’s racing department has halted development on the 2010 World Superbike spec RSV4 Factory race bike. Comfortable with Max Biaggi’s 58 point lead over Leon Haslam and his Alstare Suzuki, Aprilia wants Biaggi to focus on racing with his current setup, rather than risk having a prototype part breaking, and costing the team and Biaggi the World Superbike Championship.