Harley Davidson Model WLA 42 Motorcycle Specifications:

US Army Harley Davidson Motorcycles at other Military Museums in the northeast
Harley Davidson U/UA Motorcycle at the Wright Museum in Wolfboro, NH	Harley Davidson Model 50 Scout Motorcycle at the Militia Museum of NJ in Sea Girt, NJ
	A Harley Davidson WLA 42 Motorcycle at the Wright Museum in Wolfboro, NH

Wheelbase: 57 inches
Crew: 1
Weight: 512lbs
Max Payload: 250lbs
Max Speed: 65mph
Range: 120 miles
Powerplant: 2 cylinder 45 ci (740cc) air cooled Gas Engine 23hp
Fuel Capacity: 3.5 gallons
Entered Service: 1940
Unit Cost: $

Johan from Belgium has an outstanding page on Harley Davidson WLA Motorcycles with more information than you can shake a kickstand at. Here's a short Youtube video of a Harley Davidson WLA Motorcycle doing a quick drive by. Another Harley Davidson WLA Motorcycle video showing one being started.