1940’s JAP Speedway bar hopper / sprinter
Details & sketches will be available soon for this commission.
The JAP Speedway bar hopper/sprinter will be based around a set new repro Brough Superior front cylinder and enclosed valve head mated to a set of rare Magnesium alloy 84S short stroke J.A.P speedway crank cases , the engine will use a 4B long stroke crank and carillo rod, making about 630cc on top of that the engine will be decompressed to run a small roots type AMR500 supercharger on std pump unleaded fuel for the road. The engine should make 70+ hp at full noise.
This bike will be a bare bones bar hopper/sprinter on a daylight UK reg, with a retro style rigid rear end frame, wide bars, sprung seat, small sprinting tank. NOT designed for long cruises in the countryside, but could be a huge laugh rumbling down Kings Rd in Chelsea in London to your favorite coffee shop.
If you are interested in finding out more about this build then please contact John Pellew : firstname.lastname@example.org