Saw this at Barber Motorsports Museum when I was there a few weeks ago...Love these bikes...Here's the stats on the one in the picture:
Engine: Air-cooled 45" 4 stroke V-Twin
Ignition: Autolite distributor and coil
Power: 60 bhp @ 4,000 rpm
Bore x Stroke: 3 5/16" X 3 1/2"
Displacement: 60.3 cc
Valves: Overhead, pushrod
Fuel System: 1 1/4" single bore Linkert
Transmission: Close ratio 3 speed
Suspension: Front dual spring girder forks, rigid rear
Brakes: Front and rear drums
Weight: 495 lbs.
Top Speed: Approx. 110 mph.