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Edition:
Yamaha WR 125 X - [2009]
This edition of the Yamaha WR 125 X is the 5 speed | Manual version and was first brought out in 2009. This was at around the same time as the introduction of the 2010 Honda CBR 1000 RR Fireblade C-ABS Repsol Repl and the 2010 Honda CBR 1000 RR Fireblade Tricolour HRC.This particular Yamaha WR 125 has a 125cc Liquid cooled, Two stroke, V8 Petrol powerplant with 1 cylinders and Electronic Fuel Injection.
An alternative V8 engine, Supermoto style motorbike includes the Norton C 652 SM International - [1999]
The 2009 WR 125 shares its V8 engine and Supermoto style configuration with the likes of the 1999 Norton C 652 SM International and the 2019 Suzuki DR-Z 400 SM. Alternatively, if you're looking for other bikes which share the WR 125's Supermoto style with a similar size of engine then how about the No rows returned.
Weighing in at 137 kgs (302 lbs) this makes the Yamaha WR 125 X in the same weight category as the 2025 Honda MSX 125 Grom or the 2024 Suzuki GSX-S 125 DOHC, give or take 50kg.
The 2009 Yamaha WR 125 shares the same bhp with the Yamaha WR 250 F - [2025]
In terms of power the 125cc 4 valve V8 1 cylinder engine produces 15 bhp (11 kW) @ 9000 rpm similar to the 2025 Yamaha WR 250 F [36.1 bhp (26 kW) @ 12000 rpm] or the 2025 Honda MSX 125 Grom [9.6 bhp (7 kW) @ 7250 rpm].
The DOHC Two stroke unit throws out torque of 8.9 lb-ft (12.2 Nm) @ 6000 rpm placing it alongside motorbikes of similar performance figures such as the 2025 Honda MSX 125 Grom [7.6 lb-ft (10.4 Nm) @ 5500 rpm] and the 2024 Honda CB 300 F Twister [18.8 lb-ft (25.6 Nm) @ 5500 rpm].
If one combines the weight with power or torque performance for the Yamaha WR 125 you can get a better idea of it's real world performance.
The 1995 Honda XLR 200 R has similar Bhp Per Ton stats as the 2009 Yamaha WR 125 X.
The 2009 Yamaha WR 125 X has a Power to weight ratio of 109.4 bhp per ton and 65.6 lb-ft per ton. Bhp Per Ton figures of the 2009 WR 125 competing with the 1995 Honda XLR 200 R [134.3 bhp\ton] and the 1997 Suzuki TU 250 X [134.2 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 125 generating around 65.6 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 2000 Kawasaki ZR-250 Balius [90.6 lb-ft per ton] and the 2000 Kawasaki ZR-250 Balius II [90.6 lb-ft per ton].
With a 0-60mph time of 33.8 secs or a 0-100km/h (0-62mph) of 34.5 secs, this makes the Yamaha WR 125 X similar in acceleration to the 2015 Yamaha WR 125 X (33.8 secs) and the 2013 Yamaha WR 125 X (33.8 secs). This Yamaha WR 125 X 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).
Quarter Mile time is a close race between the 2009 Yamaha WR 125 X and the 2017 Honda CRF 250 L Rally
When talking about the performance of the 2009 Yamaha WR 125 X 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 2017 Honda CRF 250 L Rally (0 secs) and the 1987 Suzuki GSX-R 400 DOHC (0 secs).
The 2009 version of the Yamaha WR 125 X has a maximum speed of 75mph.
Top Speed of the 2009 WR 125 equals the 2021 Yamaha YZF-R15 V3 ABS
If maxing out your bike on the AutoBahn is your thing and you're wondering what's faster at the top end than the 2009 Yamaha WR 125 X then how about a 2021 Yamaha YZF-R15 V3 ABS (86 mph) and the 2020 Yamaha YZF-R15 V3 ABS (86 mph).
