

This edition of the Kawasaki KE 125 Single Cylinder is the 6 speed / Manual version and was first brought out in 1975. This was at around the same time as the introduction of the 1976 Suzuki GT 250 M and the 1975 Suzuki GT 250 M.This particular Kawasaki KE 125 has a 124cc Air 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 1975 KE 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 Nomad. Alternatively, if you're looking for other bikes which share the KE 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 110 kgs (242 lbs) this makes the Kawasaki KE 125 Single Cylinder in the same weight category as the 2025 Honda MSX 125 Grom or the 2025 Yamaha WR 250 F, give or take 50kg.
In terms of power the 124cc 8 valve V-Twin 1 cylinder engine produces 13 bhp (9 kW) @ 7500 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 Rotary Four stroke unit throws out torque of 10.8 lb-ft (14.6 Nm) @ 6000 rpm placing it alongside motorbikes of similar performance figures such as the 2025 Yamaha WR 250 F [17.8 lb-ft (24.2 Nm) @ 8100 rpm] and the 2025 Honda MSX 125 Grom [7.6 lb-ft (10.4 Nm) @ 5500 rpm].
If one combines the weight with power or torque performance for the Kawasaki KE 125 you can get a better idea of it's real world performance.
The 1979 Yamaha RD 200 Twin has similar Bhp Per Ton stats as the 1975 Kawasaki KE 125 Single Cylinder.
The 1975 Kawasaki KE 125 Single Cylinder has a Power to weight ratio of 118.1 bhp per ton and 98.1 lb-ft per ton. Bhp Per Ton figures of the 1975 KE 125 competing with the 1979 Yamaha RD 200 Twin [142.8 bhp\ton] and the 2014 Yamaha XVS 250 V-Star [142.8 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 KE 125 generating around 98.1 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 1977 Yamaha GX 400 Twin Cylinder [123.1 lb-ft per ton] and the 1978 Yamaha GX 400 Twin Cylinder [123.1 lb-ft per ton].
With a 0-60mph time of 31.3 secs or a 0-100km/h (0-62mph) of 32.0 secs, this makes the Kawasaki KE 125 Single Cylinder similar in acceleration to the 1979 Kawasaki KE 125 Single Cylinder (31.3 secs) and the 1996 Yamaha DT 125 R (31.4 secs). This Kawasaki KE 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 1975 Kawasaki KE 125 Single Cylinder and the 1980 Honda CB 400 T Hawk III
When talking about the performance of the 1975 Kawasaki KE 125 Single Cylinder 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 1980 Honda CB 400 T Hawk III (0 secs) and the 2024 Honda CB 300 F Twister (0 secs).
The 1975 version of the Kawasaki KE 125 Single Cylinder has a maximum speed of 0mph.
If maxing out your bike on the AutoBahn is your thing and you're wondering what's faster at the top end than the 1975 Kawasaki KE 125 Single Cylinder then how about a 2013 Honda CHF 50 Metropolitan (35 mph) and the 2002 Honda CHF 50 Metropolitan (35 mph).
Honda VT 750 C Shadow Ace
Engine Capacity: 745 cc
Top Speed: 105 mph
Quarter Mile: 16.0 secs @ 0 mph