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.

Carlos Checa has removed any lingering doubts about the competitiveness of the Ducati 1199 Panigale R, after controlling the second and final day of testing for the World Superbike class at Phillip Island, and ending the test as fastest overall. The Spaniard started the day fast, and ended the day fast, maintaining a strong pace throughout.

Checa was fastest in both wet – or rather, damp – conditions and in the dry. The second day of testing started out with a damp track, a number of riders choosing to stay in the pits instead of risking uncertain conditions on the newly resurfaced track, but the track soon dried out, and conditions improved greatly in the afternoon.

Leon Camier has carried his strong form from last week’s private test at Phillip Island into the official test which started at the circuit on Monday. The FIXI Crescent Suzuki man used a race tire to lap half a second under Max Biaggi’s race lap record, then going on to post a strong race simulation.

The improvements the Crescent Suzuki squad have made, in conjunction with the Japanese Yoshimura company, are clearly paying off, the Suzuki lapping a second quicker than it did at the test last year.

Camier ended the session ahead of Pata Honda’s Leon Haslam, the Ten Kate team well on their way to mastering the new HRC electronics, with still some potential left to come. Haslam was within two tenths of Camier, and just a few thousandths behind Michel Fabrizio, the Italian impressing on the Red Devils Roma Aprilia.

Helping commemorate Max Biaggi’s 2012 World Superbike Championship victory, Aprilia USA has commissioned a limited production run motorcycle: the 2013 Aprilia RSV4 Factory APRC ABS SBK Special Edition — a model featuring a subtle graphics kit revision that will only come to the North American market.

Sporting the same features and refinements as the 2013 Aprilia RSV4 Factory APRC ABS, owners of the SBK Special Edition will also enjoy the new three-level dual-channel ABS system from Bosch, as well as the  Brembo M430 calipers.

The Aprilia RSV4 Factory APRC ABS SBK Special Edition also has the same chassis and engine enhancements as the 2013 APRC model, which brings the sporty V4 to 181.4 hp at the crank and 86.3 lbs•ft of peak torque @ 10,500 rpm.

If you can distinguish it from the regular model, expect to see the Aprilia RSV4 Factory APRC ABS SBK Special Edition on dealership floors in April, with pricing announced on February 1st (next week).

True to speculation, Max Biaggi’s media presentation today announced the retirement of the reigning World Superbike Champion, at the ripe age of 41. A six-time World Champion, Biaggi’s latest stars to his leathers have come from his involvement in the factory Aprilia Racing team in WSBK, with the other four stars coming from his consecutive 250GP World Championships.

Winning his crown by half a point, in what will surely be the narrowest margin ever in World Superbike history, Biaggi’s last season went right down to the wire until the end of the season at Portimao, as the Roman Emperor had to fend off strong contentions from both Tom Sykes and Macro Melandri throughout the 2012 Championship.

“It ‘s been the longest night, but I’m happy to leave now. I do not want to be like politicians attached to the chair. I thought about it a lot, I said to myself continuous 1 or 2 years or I stop? And I decided to leave now,” said Biaggi during his announcement at Vallelunga, the circuit where he started his racing career.

Fresh off the heels of him wining the 2012 World Superbike Championship, question marks surround Max Biaggi — will he stay with Aprilia for another season and defend his title? Or, will he end his motorcycle racing career on a high, having just collected his sixth world title?

The crystal ball on this subject is uncertain. Though still not re-signed with the factory Aprilia squad for the next World Superbike Championship season, Biaggi did take part in the latest WSBK test at Aragon, which certainly lead to some believing the Roman Emperor would race for at least another season.

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.

Not withstanding the drama of Liberty Racing and Sylvain Guintoli’s slightly absurd dustup and parting of ways, along with the news the BMW Motorrad would fold its factory team into the BMW Italia effort, it’s been business as usual at Brno for World Superbike this week. The same could not be said for Saturday’s Superpole event though, which suffered from fluids being dumped on the track, and then a bout of rain caused the qualifying to go to a wet format. With teams having to adapt to the changing format, the grid for Sunday is certainly an interesting one.

With Race 1 of World Superbike racing at Aragon proving to be a close-fought battle for the top podium spot, the anticipation for Race 2 at the Spanish track was high. Equally rising were the temperatures and wind speeds, which created a new challenge for WSBK teams to deal with in the second race. And though the usual suspects were up at the front of the pack, some newcomers joined them as well, treating World Superbike fans to some very close racing. Race results after the jump.

With the weather being fair, though cooler and windier at Aragon than some would prefer, World Superbike racing was underway in Spain as Tom Sykes sat on pole…yet again. Fast on Saturday’s, the Englishman has been unable to convert his Superpole dominance into real race results, though the Kawasaki Racing racer was the only rider during qualifying to break into the 1’36 timezone.

Showing more promise with their race pace were the factory Aprilias of Max Biaggi and Eugene Laverty, who will start second and third on the grid, respectively. Rounding out the front row was Leon Haslam, who bested his teammate Marco Melandri.