14 August. Friday 2026
MuZ ETZ 251 - 1989 Specifications and Reviews
The 1989 MuZ ETZ 251 is a lightweight naked bike powered by a simple air-cooled two-stroke single, ideal for budget-conscious beginners and commuters. Known for its reliable simplicity and fuel efficiency, this East German machine delivers modest performance with a 21 hp engine capable of 129 km/h, making it a practical daily rider rather than a performance machine.
General information | |
| Category | Naked bike |
| Year | 1989 |
| Model | MuZ ETZ 251 |
Engine and Transmission Specifications | |
| Transmission type,final drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | Port control |
| Bore x stroke | 69.0 x 65.0 mm (2.7 x 2.6 inches) |
| Compression | 10.0:1 |
| Top speed | 129.0 km/h (80.2 mph) |
| Power | 21.00 |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 243.00 ccm (14.83 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake |
| Front brakes | Single disc |
| Rear tyre dimensions | 110/80-16 |
| Front tyre dimensions | 2.75-18 |
| | |
Physical measures and capacities | |
| Fuel capacity | 17.00 litres (4.49 gallons) |
| Weight incl. oil, gas, etc | 146.0 kg (321.9 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
17 hp
Peak Power
80.2 mph
Top Speed
Best For
Track10%
City60%
Cornering40%
Daily Riding45%
Touring35%
Passenger25%
Rider Profile
| Best For | Suits beginner to intermediate riders who enjoy simple, low-stakes machinery over outright performance. |
| Purpose | Best suited to relaxed commuting, light utility riding, and nostalgic classic-bike enjoyment rather than performance riding. |
| Rider Fit | Lightweight and low-powered, making it easy to manage physically for smaller or less experienced riders. |
| Character | An honest, no-frills two-stroke single with old-school charm and modest, predictable performance. |
| Not Ideal For | Not for riders seeking speed, modern refinement, or serious highway touring capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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