Motorcycle frame structure

Details Motorcycle frame structure Motorcycle frame structure

2009-02-18

2010-12-14

Hurley, Kevin (Department: 3611)

Motor vehicles

Special wheel base

Having only two wheels

Reexamination Certificate

active

07849947

ABSTRACT:
A motorcycle frame structure in which a pair of left and right main frame sections extend rearward and downward from a head pipe and are integrally provided with engine hangers each hanging downward from the intermediate portion of the main frame, such that weight reduction of the main frame is enabled while preventing strength reduction. A front edge of an engine hanger is formed to be inclined forwardly upwardly toward the head pipe. A main frame is provided with a through-hole above the engine hanger. A reinforcing portion extending generally parallel to the front edge of the engine hanger is provided in the main frame to longitudinally transverse the through-hole.

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patent: 2003-081166 (2003-03-01), None
patent: 2006-015963 (2006-01-01), None

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