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1927
Harley-Davidson
JD Twin
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
1927
Harley-Davidson
JD Twin
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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
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1927
Harley-Davidson
JD Twin
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