Yamaha’s WR450F receives engine and chassis updates for 2027

Yamaha has revealed a series of updates across its WR450F and WR250F enduro bikes, including a new Icon Blue colourway with embedded graphics. 

The 2027 WR450F continues to be powered by the company’s 450cc four-stroke reverse-head engine, however, it now features new camshaft timing.

The upgraded system is aimed at delivering smoother power while also reducing the tendency to stall. 

The revised engine unit is paired with an all-new aluminium chassis, which sees a thickened upper section introduced, as well as a narrowed bottom section and asymmetric engine mounts.

Also new for 2027 is the hydraulic clutch and ECU lock system, with the former designed to reduce rider fatigue during long days in the saddle.

Additionally, Yamaha claims to have improved the rear brake set-up through a series of changes, including a new brake hose material, revised caliper, and smaller brake disc. 

The new WR450F will cost £9,400, giving it a bump of £1,100 over the 2026 version. The WR250F has also seen a considerable price increase, with the 2027 model coming in at £8,950 - also £1,100 more than the previous model. 

The 2026 WR450F and WR250F were previously priced at £9,300 and £8,850, respectively, before the Japanese company revealed price changes to both models recently.

Like the WR450F, the smaller Grand Prix-winning WR250F makes use of KYB suspension, which is set-up specifically for enduro racing. The suspension unit features optimised spring rates and damping characteristics for 2027, while a new grippier textured flat seat has been revealed.

The liquid-cooled single also gains the same anti-theft ECU lock system as its bigger sibling, while Yamaha has revised the bike’s bilateral-beam frame in order to improve handling.

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