The 2017 WR450F Rally
The heavily updated WR450F Rally is the machine that will power Yamalube Yamaha Official Team riders Hélder Rodrigues, Adrien Van Beveren, Alessandro Botturi and Rodney Faggotter in their quest for top honours at Dakar Rally 2017.
With its development based on the production enduro WR450F platform, Yamalube Yamaha Official Rally Team engineers focused on perfectly combining high performance characteristics with extreme reliability over long distances.
Taking advantage of the WR450F reversed cylinder technology, the engine produces a strong and controllable power and torque output. Featuring parts developed by GYTR, all internal engine modifications focus on combining outstanding performance with controllability. A series of specially developed EFI fuel maps along with an Akrapovic titanium exhaust, which sweeps under the engine, further enhance the bike’s performance.
Based on Yamaha’s aluminium frame the WR450F Rally’s chassis package features a 2cm longer swingarm for added high-speed stability. Topping the team’s priorities was the goal of maintaining a neutral riding position, which is as close as possible to the stock WR450F enduro bike. Featuring a modified offset of 25mm, team engineers placed the extra fuel tanks in a position that allows free and easy rider movement.
To safeguard fuel autonomy for the long stages the new plastic tanks hold 33lt of fuel. Prioritising weight optimisation on every part of the bike, the end result gives a total dry weight of 142kg. In the suspension department, the new WR450F Rally combines a set of forks developed by BOS Suspension with a KYB Factory rear shock. An oversize 300mm front disk handles the added loads of braking from higher speeds.
Kicking off on January 2 in Paraguay the 2017 edition of the Dakar will see team riders pilot the new WR450F Rally over 8,818km of rough terrain, as they battle their way through Bolivia and towards the finish in Argentina.
Yamaha engineers are working hard to develop a complete kit aimed to transform any WR450F enduro into a rally racer. The kit is expected to be available to purchase from July 2017.
|Engine type:||Single-cylinder, liquid-cooled, 4-stroke, DOHC, 4-valves|
|Bore x stroke:||97.0 mm x 60.8 mm|
|Compression ratio:||12,5 : 1|
|Lubrication system:||Wet sump|
|Fuel system:||Fuel injection + GET system|
|Clutch type:||Wet Multiple Disc|
|Starter system:||Kick + Electric|
|Transmission system:||Constant Mesh, 5-speed|
|Frame:||Semi double cradle|
|Front suspension system:||Telescopic forks White Power|
|Front travel:||310 mm|
|Caster angle:||26º 20|
|Rear suspension system:||Swingarm, KYB Factory rear shock|
|Rear travel:||318 mm|
|Front brake:||Brembo, Hydraulic single disc, Ø 300 mm|
|Rear brake:||Hydraulic single disc, Ø 245 mm|
|Front tyre:||90/90-21 Metzeler Karoo Extreme|
|Rear tyre:||140/98-18 Metzeler Karoo Extreme|
|Overall length:||2,185 mm|
|Overall width:||845 mm|
|Overall height:||1,290 mm|
|Seat height:||975 mm|
|Wheel base:||1,485 mm|
|Minimum ground clearance:||325 mm|
|Complete weight (including fuel and oil):||162 kg|
|Fuel tank capacity:||33 litres|
|Oil tank capacity:||1,2 litres|