Honda has completely overhauled its CRF250R for 2010, with the quarter-litre machine set to join Suzuki’s RM-Z250 in adopting fuel injection.
The new CRF250R will have the same PGM-F1 fuel injection system as the CRF450R, albeit in revised configuration, which Honda claims will deliver a wider spread of power with improved delivery. There is a 50mm throttle body and 12-hole injector.
The engine is mated to a single muffler, with Honda waving goodbye to the dual muffler design of recent years. The pistons are made from a new, more durable material, while the valve springs are constructed from the same material used in Honda’s RC211V MotoGP machine. A new radiator keeps the 249.4cc liquid-cooled four-stroke cool, and it also has revised new gear ratios.
Other engine changes include a more durable water pump and larger AC generator.
The chassis is a new twin-spar aluminium frame, with a forged aluminium steering head. The machine has fully adjustable Showa suspension, and the wheelbase is now slightly longer. It rolls on Dunlop tyres.
The claimed wet weight for the red machine is 102.5kg, just a smidgeon below the 2009 bike.
As for the 2010 CRF450R, the story isn’t quite as far-reaching, as it was all-new for 2009. It does have new ECU and fuel injection settings, while there is also a new engine auto-decompressor system for easier kickstarting.
The forks have revised damping, while the shock has an updated piston and a redesigned compression adjuster.
Honda Australia is yet to officially announce the 2010 models, with the Bikesales Network sourcing information from overseas. However, we expect an announcement on price and availability sometime next week.