An experimental motorcycle frame was conceived, fabricated, tested and evaluated to seek a solution to the severe problem of side impact to motorcycle riders which results in a high incidence of injury and death. A systems approach toward motorcycle design resulted in the development of an integral side protection structure capable of protecting the rider's legs from direct as well as oblique side impacts. The structure was a welded double-loop frame constructed of seamless AISI 4130 tubing. Front and rear wheels, forks, and brakes along with controls, engine, transmission, and electrical system were conventional Harley-Davidson components. The motorcycle was subjected to a 90 degree direct side impact with a car, a 22.5 degree off-center rear oblique impact with a car, and a 45 degree off-center oblique impact frontal with a car. An induced slide test resulting in a road surface impact was also conducted. All tests were run using a male 50 percentile anthropomorphic rider at impact speeds of 30 mph. Evaluation of the limited test results to date indicates that preliminary design objectives for side protection were met. /Author/

  • Supplemental Notes:
    • Research sponsored by the National Motor Vehicle Safety Advisory Council and U.S. DOT. Presented at the International Congress on Automotive Safety (2nd), 16-18 July 1973.
  • Corporate Authors:

    AMF Incorporated

    Advanced Systems Laboratory, 495 South Fairview Avenue
    Goleta, CA  United States  93017
  • Authors:
    • Bartol, J A
  • Publication Date: 1973-7

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098849
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Report/Paper Numbers: No. 73044 Conf Paper
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM