| MODEL | MZ 125SX 2001 - 2008 |
| Year | 2001 - 2008 |
| Engine Type | Four stroke, single cylinder, DOHC, 4 valve |
| Displacement / Capacity | 124 cc / 7.6 cu in |
| Bore X Stroke | 60 x 44 mm |
| Compression Ratio | — |
| Cooling System | Liquid cooled |
| Max Power | 10.9 kW / 14.7 hp @ 9000 rpm |
| Max Torque | 11.2 Nm / 8.6 lb-ft @ 8500 rpm |
| Ignition | Digital CDI |
| Induction | 24 mm carburetor |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Steel, single cradle frame |
| Front Suspension | Marzocchi upside-down fork |
| Rear Suspension | White Power |
| Front Brakes | Single 280 mm disc |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 860 mm / 33.9 in |
| Wheelbase | 1440 mm / 56.7 in |
| Ground Clearance | — |
| Dry Weight | 127.5 kg / 281.1 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 120/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 12.5 Litres / 3.3 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 125SX is MZ's small four-stroke enduro, a liquid-cooled single with four valves and electric start. It shares its engine with the 125SM supermoto and the RT 125 road bike, but carries longer-travel off-road suspension and a 21 inch front wheel. Light and low-powered, it was aimed at learner riders and newcomers to trail and enduro riding.
