Kawasaki KMX
The Kawasaki KMX is a lightweight dual-purpose trail motorcycle produced by Kawasaki from the mid-1980s to the early 2000s. It features a liquid-cooled two-stroke single-cylinder engine, front and rear disc brakes, Kawasaki's Uni-Trak monoshock rear suspension, and the KIPS (Kawasaki Integrated Power-valve System) for improved power delivery across the rev range.[1]
Two main variants were produced: the more common KMX 125 (exported widely, including to Europe and the UK) and the rarer KMX 200 (primarily in select markets like the UK, with greater low-end torque).[1]
KMX 125
| Manufacturer | Kawasaki |
|---|---|
| Production | 1986–2002[2] |
| Class | Dual-sport / Trail |
| Engine | 124 cc two-stroke single, liquid-cooled, reed valve induction |
| Bore / stroke | 54 × 54.4 mm |
| Compression ratio | 7.8:1 |
| Top speed | 71 mph (restricted) – 80+ mph (derestricted)[2][1] |
| Power | 12 bhp (restricted) – 20–22 bhp (derestricted) @ 9,500 rpm[1][3] |
| Torque | ~12 lb-ft / 17 Nm @ 9,000 rpm (derestricted)[3] |
| Transmission | 6-speed manual, chain final drive |
| Suspension | Front: telescopic forks (230 mm travel) Rear: Uni-Trak monoshock, adjustable preload (230 mm travel) |
| Brakes | Front: single 230 mm disc Rear: single 210 mm disc |
| Tires | Front: 2.75-21 Rear: 4.10-18 |
| Wheelbase | 1,375 mm |
| Seat height | 865 mm |
| Weight | 96 kg (dry) |
| Fuel capacity | 9.3 L |
The KMX 125 was popular as an affordable, versatile on- and off-road bike, especially among learners in restricted form (typically limited to around 12–13 bhp for compliance with A1/provisional licenses in markets like the UK).[2] Restrictions were commonly achieved via a washer in the exhaust or carburetor/jetting changes and were straightforward to remove for full performance.[2]
In derestricted form, it offered lively two-stroke performance with a strong mid-to-top-end powerband thanks to KIPS, lightweight handling, and good trail capability. It competed with models like the Yamaha DT125R.[1]
Common reliability notes include the need for regular top-end maintenance (typical of two-strokes), cleaning of the power valve, and proper premix oil use, but many examples have proven durable with basic care.[2]
KMX 200
A higher-capacity version with a 191 cc engine, producing around 25–30 bhp (derestricted) and significantly more low-end torque for better trail usability. While it shared the 125 model’s frame it incorporated upgraded forks, yokes, and rear swingarm exclusive to the 200, along with a 17-inch rear wheel. [4][1]
| Manufacturer | Kawasaki |
|---|---|
| Production | 1988–1992 (shorter run) |
| Class | Dual-sport / Trail |
| Engine | 191 cc two-stroke single, liquid-cooled |
| Bore / stroke | 67 × 54 mm |
| Power | ~25–30 hp @ 8,500 rpm |
| Torque | ~18–20 ft-lb |
| Transmission | 6-speed manual |
| Suspension | Similar to KMX 125 (telescopic front forks; Uni-Trak rear monoshock) |
| Brakes | Front & rear disc (similar sizing to 125) |
| Tires | Front: 3.00-21 Rear: 4.60-17 |
| Weight | ~100 kg (dry) |
| Fuel capacity | 9.3 L |
The KMX 200 shared the same chassis and features but felt punchier due to the extra displacement, though it had a shorter production life and is less common.[4]
See also
References
- ^ a b c d e f "Kawasaki KMX125/KMX200 - Modern Classic Review & Buyers Guide". Bennetts BikeSocial. Retrieved 2026-03-04.
- ^ a b c d e "KAWASAKI KMX125 (1986-2002) Review". Motor Cycle News. Retrieved 2026-03-04.
- ^ a b "Kawasaki KMX125". motorcyclespecs.co.za. Retrieved 2026-03-04.
- ^ a b "Kawasaki KMX 200". motorcyclespecs.co.za. Retrieved 2026-03-04.