Here are some videos of one of my favourite little bikes. Was busy restoring an 81 model before moving to Aus, my brother now has it.
https://www.uvioo.com/video?m=ShaneB&so=yt&v=Av3K9vviSug
https://www.uvioo.com/video?m=ShaneB&so=yt&v=BO9gWkMWtcQ...