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AMA Pro Racing have released the final rulebook for next year's American Superbike, Daytona SportBike, SuperSport and SunTrust MotoGT classes.

In the main series, V-twins up to 1200cc are allowed in which is good news for Ducati but all bikes have to retain their standard forks, albeit with modified internals. So the active suspension that Yamaha have been using in World Superbikes is out.

Teams won't be able to change the steering head or swingarm pivot position unless it's adjustable on the bike as it comes out of the factory. But riders can use double-bubble screens.


IN terms of engine work, porting and polishing of the cylinder head and intake manifold normally associated with individual tuning such as gas flowing of the cylinder head, including the combustion chamber is allowed.  
Welding or the addition of material is allowed and the compression ratio is unrestricted.

Camshafts can be modified or replaced and duration can be altered, camlift must remain standard. Standard crankshafts have to be used and cannot be polished or lightened, and the same goes for conrods, pistons and rings.

In the Daytona SportBike class, these are the bikes which qualify for homologation: Aprilia RSV, BMW HP2 Sport, Buell 1125R, Ducati 848, Honda CBR600RR, Kawasaki Ninja ZX-6R, KTM Super Duke, Suzuki GSX-R600, Triumph Daytona 675, Yamaha YZF-R6, which is an odd mix.

You can do next to nothing with the engines other than fiddle with the cam timing and suspension rules are the same as for Superbike.

The bikes and rules for the SuperSport class appear to be the same, give or take a word, so we're not sure why it exists...

Click here for the full rule book

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