it was a 72 model i think
A 100cc trailboss10
It had 10 gears 5 offroad 5 onroad
you switched them on a lever at the rear of the left side.
I cant find any info on them
I had one a long time ago, and wouldnt mind having one again
They were small, only 100cc but very durable
more of an enduro bike than dirt i guess