New knucklehead choppers 
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| knucklehead choppers Facts Production was 28,189 machines. At this point, both valves are still closed. New two-stroke designs rely on electronically-controlled fuel injection, oil injection and other design tweaks to reduce pollution and increase fuel efficiency. 1965 george roeder set a world land speed record of 177. Only two motorcycle manufacturers survived the depression, harley davidson and indian. However, race compound tires should not be used in street applications. Intake and exhaust pipes are tuned so that resonances in airflow give better flow. See also big dog chopper, and pages related to knucklehead choppers. |
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