MuZ ETZ 251

Modification	Cylinders	Capacity	Power	Cooling	Weight
1989	1	243 cm3	21 HP	Air-cooled	146 kg
1990	1	243 cm3	21 HP	Air-cooled	146 kg
1991	1	243 cm3	21 HP	Air-cooled	146 kg
1992	1	243 cm3	17 HP	Air-cooled	146 kg