The all-new 2018 Honda CRF250R has been unveiled globally, confirming the quarter-litre machine will receive a major overhaul for the new year.

The changes include both cosmetic and performance upgrades, which will see the MX2 contender’s aesthetics brought into line with the current CRF450R model, along with an electric starter and all-new engine.

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The 249cc powerplant boasts an all-new dual-overhead-cam design, using a finger rocker arm with Diamond Like Coating (DLC). The titanium intake and exhaust valves are larger and have a higher lift and narrower angle, while the valve springs’ coils now have an oval cross-section to keep engine height as low as possible.

The engine has more over-square dimensions, the cylinder offset has been increased, and the piston now features a bridge-box design–a first for a production Honda motocrosser. The intake system is now of a downdraft design for maximum efficiency, there are twin exhaust ports, and the dual exhaust features smoother routing and optimised pipe length.

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An electric starter is standard, powered by a small, lightweight lithium-iron phosphate battery. The end result of the copious changes is an engine with more power across the rev range, especially impressive at peak rpm.

The 2017 CRF450R set new standards for vehicle packaging in a motocross machine, with highly concentrated mass and a very low center of gravity – the 2018 CRF250R follows suit, with weight reduced all-round, but particularly up high and at the ends of the bike.

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The layout is slim and low, and the machine has superb rear-wheel traction but minimal front-end lift, which is ideal for strong starting and acceleration. The main spars of the new-generation, lighter aluminium frame are now tapered to optimise flex characteristics and provide good stability and reliable rider feedback, while a shorter wheelbase improves overall agility.

An all-new titanium fuel tank and extruded sub-frame end save precious weight up high, a new 49mm Showa coil-spring fork contributes a plush suspension feel, and a lower, more centralised shock location improves stability.

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Bodywork mirrors the design of the CRF250R’s bigger brother in form and function, with a minimalist appearance and in-mold film graphics. The bike is also fitted standard with Dunlop’s superb Geomax MX3S tyres.

As a result of the engine and chassis updates, the 2018 CRF250R boasts a three-percent improvement in start performance compared to its predecessor, along with improved acceleration and handling.

Source: Supplied.

2018 Honda CRF250R key changes:
– More over-square bore and stroke dimensions.
– Increased valve size and lift, narrower valve angle, oval cross-section valve springs.
– Higher compression ratio.
– Downdraft air intake.
– Dual exhaust ports/headers/exhausts.
– Electric start.
– Lighter frame/subframe with optimised flexibility characteristics.
– Revised chassis geometry for lighter handling, improved rear traction, reduced front-end lift.
– Coil-spring fork.
– Titanium fuel tank.

It has three engine modes that are available on the 2018 CRF250R to maintain its versatility whereby riders can select from Standard, Smooth and Aggressive depending on their skill levels and track conditions.

Pricing in Australia is yet to be determined, however MotoOnline.com.au will publish updates once more details come to hand. The all-new model is slated to land in the country in December.

For more information on this exciting new model visit www.hondacrf.com.au or for information on the entire Honda range visit your nearest Honda Dealer, ring 1 300 1 HONDA or go to www.hondamotorcycles.com.au.