Wasn't the Bultaco Trials bike called an Alpina Pursang. It's been like 35 years so my memory is a bit foggy. I seem to remember wanting one but they were never sold in my area. We had the 4 jap. brands and Can Am and that was it. Those Can Am dirt bikes in the mid 70's were fast. A reed valve Rotax 2 stroke. The chassis was a bit of a disaster and the brakes were down right dangerous. Too bad there's not much dirt bike activity here these days. I still get the urge to have one every spring.
One of the many i had was a Yamaha tt500.. stupid fast and horrible brakes.. It lasted one year.. I upgraded to less power and more brakes..
The Harley is still here.. thought about selling it. even the 500 km a year on it last year was worth keeping it. Hope next year i can do more miles..