The new NSF250R 4-stroke bike bears striking similarities to the bike it's replacing, the RS125R. Incidently, the RS125R was ridden by both Dani Pedrosa and Andrea Dovizioso to their respective World Championship runs.The new Moto3 contender unveiled today in Catalunya by Honda Racing Corporation (HRC), the new NSF250R is to go on sale in December 2011. The liquid-cooled, 4-stroke, single cylinder, DOHC, 249cc engine was specifically disegned for Moto3 to be lightweight and compact while delivering high output.
Honda says that in order to achieve this high output together with excellent responsiveness, the machine incorporates a front-intake/rear-exhaust configuration with high charging efficiency, while adopting a layout with the cylinder tilted back 15° to concentrate mass.
To ensure power delivey all the way through to the rpm range, the NSF250R adopts titanium valves for both the intake and exhaust to reduce friction. Furtthermore, the design reduces friction between piston and improves durability by offsetting the cylinder centerline and applying nickel silicon carbide (Ni-SiC) for the cylinder surface treatment. The easily replaceable casette design selected for the close-ratio 6-speed transmision, allows gear selection to be optimezed over a large variety of racing circuits.
Those of you interested in kepping tabs on the new Moto3 class of MotoGP, you might find it worth your time to check out the bike that's being groomed to contend in the new series beginning in 2012.
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