

This edition of the Yamaha WR 450 F is the 5 speed | Manual version and was first brought out in 2017. This was at around the same time as the introduction of the 2018 Yamaha XSR 700 Twin and the 2018 Kawasaki KLX 250 Camo.This particular Yamaha WR 450 has a 449cc Liquid cooled, Two stroke, V-Twin Petrol powerplant with 1 cylinders and Electronic Fuel Injection.
The 2017 WR 450 shares its V-Twin engine and Off-Road style configuration with the likes of the 2020 Kawasaki KLX 250 Camo and the 2020 Kawasaki KLX 250 Single Cylinder. Alternatively, if you're looking for other bikes which share the WR 450's Off-Road style with a similar size of engine then how about the 2020 Kawasaki KLX 250 Single Cylinder | 2020cc.2020 Kawasaki KLX 250 Camo | 2020cc.
Weighing in at 123 kgs (271 lbs) this makes the Yamaha WR 450 F in the same weight category as the 2025 Honda MSX 125 Grom or the 2024 Honda CB 300 F Twister, give or take 50kg.
In terms of power the 449cc 4 valve V-Twin 1 cylinder engine produces 58 bhp (43 kW) @ 9000 rpm similar to the 2025 Yamaha Tenere 700 [72.4 bhp (53 kW) @ 9000 rpm] or the 2025 Yamaha MT-07 Twin Cylinder [73.4 bhp (54 kW) @ 8750 rpm].
The DOHC Two stroke unit throws out torque of 36.2 lb-ft (49.0 Nm) @ 7500 rpm placing it alongside motorbikes of similar performance figures such as the 2025 Honda X-ADV 745 [50.9 lb-ft (69.0 Nm) @ 4750 rpm] and the 2025 Suzuki SV 650 ABS [47.2 lb-ft (63.9 Nm) @ 8100 rpm].
If one combines the weight with power or torque performance for the Yamaha WR 450 you can get a better idea of it's real world performance.
The 2017 Yamaha WR 450 F has a Power to weight ratio of 471.5 bhp per ton and 294.3 lb-ft per ton. Bhp Per Ton figures of the 2017 WR 450 competing with the 2001 Kawasaki ZRX 1200 S [493.9 bhp\ton] and the 2006 Kawasaki ZRX 1200 S [493.9 bhp\ton].
If you agree with the late great Carroll Shelby, then arguably an even better indicator of potential performance is Torque. Factor weight into the equation and you end up with - Torque per ton, with the Yamaha WR 450 generating around 294.3 lb-ft per ton. If you're curious as to what other motorbikes have as much torque to weight then look no further than the 2006 Yamaha XV 1700 Road Star Midnight [319.2 lb-ft per ton] and the 2008 Yamaha XV 1700 Road Star [319.2 lb-ft per ton].
With a 0-60mph time of 7.8 secs or a 0-100km/h (0-62mph) of 8.0 secs, this makes the Yamaha WR 450 F similar in acceleration to the 2019 Kawasaki Versys 1000 Twin Cylinder (7.8 secs) and the 2019 Kawasaki Versys 1000 LT (7.8 secs). This Yamaha WR 450 F also competes in terms of 0-60 mph and 0-100km/h with the 2018 Honda CB 250 R Neo Sports Cafe (0.0 secs) and the 2020 Norton Superlight SS (0.4 secs).
When talking about the performance of the 2017 Yamaha WR 450 F on the drag strip it can reach a quarter mile in an estimated 0 secs @ 0 mph. Bikes with a similar performance down the quarter mile can be found in the 2018 Honda PCX 125 EFI (0 secs) and the 2012 Honda VFR 1200 X Crosstourer (0 secs).
The 2017 version of the Yamaha WR 450 F has a maximum speed of 120mph.
If maxing out your bike on the AutoBahn is your thing and you're wondering what's faster at the top end than the 2017 Yamaha WR 450 F then how about a 2013 Suzuki GSX 650 F DOHC (131 mph) and the 2012 Suzuki GSX 650 F DOHC (131 mph).