1911 Mm 4 Cylinder Race Bike

[Barry Brown]

sorry about the crappy photo. I suspect this is one of their auto engines. check out the belt drive and lots of nickel plating and rider wearing a factory logo emblazoned sweater. this would be a great bike to repop

[sveger]

MM 4 cyl

Interesting photo indeed,
Am I right if I see a disc rear wheel on this bike? This is most likely done to allow the rearwheel to take torque from the 4 cyl engine without throwing all spokes out?
Is there any other known photo of this 4 cylindered motorcycle?

sveger

[Barry Brown]

this is the only photo or reference for that matter of this unusual machine I have come across. It definitely has rear wheel spokes . what you are seeing is the huge final drive belt sheave with lightening holes. It also has a very large drive sheave.