Yamaha has announced its WR250F for 2020, with plenty of changes. And, a lot of those changes are basically repackaging YZ250F tech.

Yamaha says the WR’s engine has a new piston, revised top end, new air filter and intake system, new stator and other changes that improve top-end output. Most of the changes are using technology recycled from the YZ250F, but aimed towards woods riding.

Same goes for the bilateral beam frame and the KYB air-oil-separate upside-down front fork: Yamaha says it wanted to upgrade the WR’s handling, and did so by tweaking the YZ formula for enduro use. The rear shock is also basically the same as the YZ250F, but with a few small changes (larger reservoir, different spring) to make it work better in an enduro role.

The WR may have a lot of MX-derived bits, but it’s still a woods bike. Photo: Yamaha

The WR gets a bigger 2.2-gallon fuel tank, though, and a headlight, and a plastic skid plate, all stuff you need in the woods. That fuel tank is set towards the back of the bike, with the air filter in the front, as the engine has a reversed intake system, to allow it to flow air more freely.

Other tweaks: the clutch has a lighter pull, and Yamaha says it’s made of tougher materials. The seat is more flat, and sits lower. The headlight is new, the sidestand is lighter, and there’s a new speedo drive system on the front wheel that’s supposed to save weight and make wheel changes easier.

All in all, a few minor changes, and a few big ones. The WR250F is supposed to be at US dealerships in October, for a $8,999 MSRP. See more details in Yamaha’s press release underneath:

All-New 2020 WR250F Headlines Yamaha’s September Introduction

Flagship WR450F Model Returns as part of 2020 Dirt Motorcycle Lineup

CYPRESS, Calif. – September 4, 2019 – Yamaha Motor Corporation, USA, today introduced the remainder of the company’s 2020 Dirt Motorcycle models, headlined by an all-new WR250F Enduro machine. Along with the return of the larger-displacement WR450F, this introduction completes the 2020 Yamaha Dirt Motorcycle lineup.

Welcome to the victorYZone

Yamaha Off-Road competition bikes offer the very latest technology and performance features designed to make enthusiasts the best riders possible, win races and help them become one with their machine.

All-New 2020 WR250F

The 2020 Yamaha WR250F is closer than ever to the latest-generation, championship-winning YZ250F and arrives completely revised for precise performance in enduro competition. A combination of linear and tractable power throughout its rev range, pinpoint handling, and clockwork reliability has ingrained the WR250F as a favorite among fast trail riders and racers alike.

High Performance YZ250F-Based Engine

The new WR250F engine is based on the class-leading, fuel-injected YZ250F design, and features a rearward-inclined cylinder and reverse cylinder head. Its airbox is situated in front of the rider with the fuel tank located at the center of the bike – a unique configuration that contributes to the bike’s mass centralization and plays a pivotal role in achieving light and agile handling.

The 2020 WR250F features a new high compression forged aluminum piston, revised valve angle and exhaust cam timing with revised balance factor – all based on the current YZ250F, but with enduro-specific settings to provide enhanced off-road trail performance. That performance is further bolstered by the fitment of a dual electrode spark plug and revised exhaust for 2020.

Compared to the previous WR250F engine, the 2020 design is more powerful at higher rpm, and delivers stronger power through the rev range, making it a serious contender for top honors.

Free-Flowing Air Filter Contributes to Linear Engine Response

A new air filter element features improved airflow with increased reliability and, combined with a revised length of the intake funnel, contributes to an excellent feeling of traction and linear engine power characteristics during acceleration and deceleration. Rubber seals on the center positioning pin increase dust-filtering capability, and a model-specific sound-damping resonator design is also adopted.

Tougher Clutch with Lighter Pull

The 2020 WR250F is equipped with a 6-speed transmission that is designed to handle a wide variety of terrain, from technical rock climbs to full throttle blasting along forest trails. A new lighter and tougher clutch is now mated to the gearbox to match the extreme demands of enduro riding. Featuring new heat resistant friction plates, this durable clutch has a super light lever pull and is built to perform consistently and effectively for long periods in the toughest terrain.

Mass Centralized Starter System

A lightweight starter motor has been repositioned from the front of the engine to just behind the cylinder, contributing to mass centralization. The new system and redesigned one-way clutch reduce drag and horsepower loss – a 60% reduction in load compared to the outgoing model. The kick starter has also been eliminated to save weight.

Sharp Handling YZ250F Bilateral Beam Frame and Optimized Ergonomics

The 2020 WR250F now uses the same bilateral beam frame as the sharp-handling YZ250F. To achieve a rigidity balance with the amount of flex needed for enduro riding, the front engine mount brackets have been altered. Like the changes made to the 2020 YZ250FX, the upper-side engine mounts are the same used on the YZ250F, while two plate-type mounts are used for the front-side of the engine. The result contributes to the machine’s excellent feeling of contact with the ground and offers feedback about the riding surface while still providing a light feel.

Surrounding this fully redesigned chassis, the 2020 WR250F features a new lighter, compact body from front to back, including a larger, 2.2-gallon, mass-centralized fuel tank. The radiator shrouds incorporate a new air duct with a concave shape that not only improves styling but is also narrower for better knee grip and overall rider movement. To further aid rider movement and comfort, the seat height has been reduced and the aluminum tapered handlebars are four-way adjustable.

Industry Leading KYB® Coil Spring Suspension with new Settings

The all-new WR250F runs the same industry-leading, fully adjustable KYB®, SSS coil spring-type forks with speed sensitive damping as the YZ250F, but with model-specific enduro settings to provide optimal comfort and compliance. This suspension is acknowledged to be the best available on a production dirt bike, and responds particularly well during the transition between the compression and rebound strokes.

The outer tubes are the same as the YZ250F and contribute to a secure feeling of ground contact. The diameter of the cartridge cylinder and piston have been increased compared to the outgoing model (24 mm to 25 mm) as has the flow rate of the fork oil. The mid-speed valve (MSV) that provides damping in the mid-speed range has been changed from a coil spring type to a leaf spring type. This mechanism responds to even the slightest amounts of oil flow and delivers excellent damping feel at low speeds.

The rear shock absorber is also based on the YZ250F and features enduro model-specific settings. It features a coil spring with a higher fatigue strength than the current model’s and with an 11.5mm wire diameter achieves a weight reduction of approximately 350 grams. The capacity of the shock reservoir has been increased by 30cc to run cooler and achieve a more stable damping force.

More Protective Skid Plate

The 2020 WR250F features a more protective plastic resin engine guard to help prevent damage to the frame, engine, water pump and hoses when running through ruts or from impacts by kicked up rocks. Also, reducing the size of the open space at the front limits the amount of mud and rocks entering thus reducing additional running weight.

Larger Capacity Fuel Tank

A newly-designed 2.2-gallon plastic resin fuel tank is featured to reduce the frequency of refueling during long-distance rides. The current YZ250F’s tank was used as the developmental base, and the lower portion has been extended downward, toward the center of the bike to improve mass centralization, and to increase the tank’s capacity by 0.5 gallons. A compact fuel pump is another new feature. These changes have made it possible to achieve a slim, compact body design that is identical to the YZ250F without any additional bulk or interference with the riding position.

Flatter, Lower Seat

A redesigned seat with stiffer seat foam is fitted to aid rider maneuverability and to make getting on and off the bike easier. A slimmer design through the shroud/knee contact area helps further improve rider ergonomics.

New Forged Aluminum Side-Stand

A lighter and less obtrusive forged aluminum side-stand is positioned to ensure plenty of ground clearance when riding through ruts. The new stand sits higher and the amount it protrudes from the chassis is reduced which helps prevent snagging. The weight of the stand has also been reduced by about 100g. This is the same as the 2020 model YZ250FX stand design.

Sleek New Headlight Cowl

The WR250F’s new headlight cowl sits lower and closer to the rider. It contributes to centralization of machine mass, reducing steering effort and helps to create a light, agile impression for the machine.

Lightweight Speed Sensor with High-Precision Display

A new lightweight front wheel speed sensor connects to a highly precise, fully featured enduro meter display and, without a speedo drive, makes front wheel changes easier. The system features a pulse wheel and sensor system known for excellent reliability and provides detailed speed information essential for enduro riding and racing.

18-Inch Rear Wheel

The WR250F uses an 18-inch rear wheel for improved comfort and better pinch-flat resistance in rocky and root-filled conditions. Dunlop MX3X tires provide excellent performance and durability, making this new bike ready to race right off the showroom floor.

Main Features Carried Over from Existing WR250F

Rearward-slanted cylinder design featuring optimized weight distribution

Wet sump lubrication

18-inch rear wheel

Sealed O-Ring chain

Lightweight switch free starting system

Radiator cooling fan

Lead battery resistant to effects of changes in ambient air temperature

Headlight, LED tail light

Speedometer, fuel level warning lamp, engine warning lamp

The 2020 WR250F will be available from Yamaha dealers in October in Team Yamaha Blue for $8,599 MSRP.

Subscribe to Our Newsletter

Thank you for subscribing!
This email is already subscribed.
There has been an error.