My limited knowledge says it looks like a Panther, possibly 350 or 500, but I could be completely wrong. Nasher
Looks a lot like this one: https://motorcycles-for-sale.biz/sale.php?id=42634 Great image by the way. Nasher
I understand the law requires the posting of this cartoon in any thread about Panther's... Caption reads "We're done for lads, we've drawn the Panther Owners Club"
I mate of mine chopped a 600 panther and painted it pink, this was in the 70’s Was often seen around Canterbury. As I remember they seemed to fire about every lamp post, long stroke engine. These were mainly used for sidecars, due to the long wheelbase.