Highlights

• The JD Twin targeted police and riders who wanted the ultimate in acceleration, speed, and power
• A three speed hand shift gear box is driven by a foot operated multiplate dry clutch
• The JD uses a roller bearing rear hub to carry the extra weight of the single and double side cars available with this model
• The 74 ci (1213cc) twin used a standard single camshaft layout with an upgraded single unit electrical system
• There was maximum riding comfort with an improved cushion seat, front fork springs, full balloon tires, and a low riding position
• Later models (known as the JDH) used a twocam setup with roller rocker arms