The Batavus Bronco was made from 1972 until the late 70's.
The Bronco has a single speed two-stroke Laura M-48 engine. The Bronco was available in 20, 25, and 30 mph versions.
The easiest way to tell the difference between other Batavus mopeds and the Bronco is that the Bronco had a chrome guard to protect the rider from the hot exhaust pipe.
Another difference between the Bronco and other Batavus mopeds is that has a high-rising back to the seat with springs under it instead of rear shocks, and motorcross style handlebars.
Sources: Batavus Archive et al