Speedway Workshop

The Dave Hynes JAP

Another machine from that period when it becomes very difficult to differentiate between the Erskines, Langtons, Rotrax's etc ..... The Dave Hynes is no exception and indeed, is almost identical to an Erskine. So how can you tell the difference ? ....

Wayne Powell, the owner of this particular machine, captures not only the beauty of his lovingly restored "Hynes JAP" in the pictures below, but also describes the differences and illustates them on camera.
(Note):Due to the Limitations of Web Space, the original images have been greatly reduced in size and do little justice to the care and attention to detail that Wayne has put into his restoration.

Wayne Tells Us:
I told you I built up a Four Stud J.A.P. in a Rotrax frame. Since then I've done further research and found out it wasn't a Rotrax frame, instead it is a Dave Hynes frame from Melbourne.
It's very similar to the Erskine frame. The main difference is that the handle bars mountings are located in different positions on the top plate where the staunchons are brazed on.
You will note that the handle bar clamps are half on and half off the Top Plate. Keith Cox from Brisbane, who rode in Edinburgh in 1949 was with Dave Hynes at that time and he identified it positively as a Dave Hynes frame.
Also the seat mounting brackets are different to the Rotrax frame.


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Classic Motorcycle Fibreglass
Classic Motorcycle Fibreglass
Tanks, seats, guards and fairings for classic bikes, cafe racers and post-classic motorcycles.