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Edition:
Kawasaki KMX 125 Single Cylinder - [1990]
This edition of the Kawasaki KMX 125 Single Cylinder is the 6 speed | Manual version and was first brought out in 1990. This was at around the same time as the introduction of the 1991 Norton Commander Rotary and the 1990 Norton Commander Police.This particular Kawasaki KMX 125 has a 124cc Liquid cooled, Four stroke, V-Twin Petrol powerplant with 1 cylinders and Carburettor.
An alternative V-Twin engine, Off-Road style motorbike includes the Yamaha XSR 700 XTribute - [2019]
The 1990 KMX 125 shares its V-Twin engine and Off-Road style configuration with the likes of the 2019 Yamaha XSR 700 XTribute and the 2019 Norton Atlas 650 Ranger. Alternatively, if you're looking for other bikes which share the KMX 125's Off-Road style with a similar size of engine then how about the 1997 Suzuki TS 125 Single Cylinder | 1997cc.1992 Suzuki TS 125 Single Cylinder | 1992cc.
Weighing in at 0 kgs (0 lbs) this makes the Kawasaki KMX 125 Single Cylinder in the same weight category as the 2025 Yamaha Tracer 9 GT+ or the 2025 Yamaha Tracer 9 GT, give or take 50kg.
The 1990 Kawasaki KMX 125 shares the same bhp with the Honda MSX 125 Grom - [2025]
In terms of power the 124cc 10 valve V-Twin 1 cylinder engine produces 22 bhp (16 kW) @ 9500 rpm similar to the 2025 Honda MSX 125 Grom [9.6 bhp (7 kW) @ 7250 rpm] or the 2025 Yamaha WR 250 F [36.1 bhp (26 kW) @ 12000 rpm].
The Power Valve Four stroke unit throws out torque of 12.1 lb-ft (16.5 Nm) @ 9000 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 2025 Yamaha WR 250 F [17.8 lb-ft (24.2 Nm) @ 8100 rpm].
If one combines the weight with power or torque performance for the Kawasaki KMX 125 you can get a better idea of it's real world performance.
The 1989 Honda GB 500 TT Clubman Tourist Trophy has similar Bhp Per Ton stats as the 1990 Kawasaki KMX 125 Single Cylinder.
The 1990 Kawasaki KMX 125 Single Cylinder has a Power to weight ratio of 189.6 bhp per ton and 105.1 lb-ft per ton. Bhp Per Ton figures of the 1990 KMX 125 competing with the 1989 Honda GB 500 TT Clubman Tourist Trophy [214.6 bhp\ton] and the 1999 Suzuki DR 350 SE [214.2 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 Kawasaki KMX 125 generating around 105.1 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 1982 Honda CB 550 SC Nighthawk [130.0 lb-ft per ton] and the 2009 Suzuki GSR 400 ABS [129.9 lb-ft per ton].
With a 0-60mph time of 19.5 secs or a 0-100km/h (0-62mph) of 19.9 secs, this makes the Kawasaki KMX 125 Single Cylinder similar in acceleration to the 2014 Honda VT 1300 CX Fury (19.5 secs) and the 2010 Honda VT 1300 CX Fury (19.5 secs). This Kawasaki KMX 125 Single Cylinder 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 1990 Kawasaki KMX 125 Single Cylinder and the 1986 Kawasaki KMX 125 Single Cylinder
When talking about the performance of the 1990 Kawasaki KMX 125 Single Cylinder on the drag strip it can reach a quarter mile in an estimated 18.4 secs @ 0 mph. Bikes with a similar performance down the quarter mile can be found in the 1986 Kawasaki KMX 125 Single Cylinder (18.4 secs) and the 1984 Kawasaki AR 125 Single Cylinder (18.4 secs).
The 1990 version of the Kawasaki KMX 125 Single Cylinder has a maximum speed of 71mph.
Top Speed of the 1990 KMX 125 equals the 1991 Honda CB 250 Jade
If maxing out your bike on the AutoBahn is your thing and you're wondering what's faster at the top end than the 1990 Kawasaki KMX 125 Single Cylinder then how about a 1991 Honda CB 250 Jade (82 mph) and the 1981 Honda CM 250 Custom (82 mph).
