Fits Honda:(non-tapered spring)

XL250S - 1978-1979
CB400A Hondamatic - 1978
CB400TI Hawk I - 1978-1979
CB400TII Hawk II - 1978-1979
CM400A Hondamatic - 1979
CM400T - 1979
CX500 - 1978-1979
CX500C Custom - 1979
CX500D Deluxe - 1979

Fits Honda:(tapered spring)

XL250S - 1980-1981
XR250 - 1980
XR250R - 1981-1982
CB400T Hawk - 1980-1981
CM400A Hondamatic - 1980-1981
CM400C Custom - 1981
CM400E - 1980-1981
CM400T - 1980-1981
CB450SC Nighthawk - 1982-1986 - 2 types were .
CB450T Hawk - 1982
CM450A Hondamatic - 1982-1983
CM450C Custom - 1982
CM450E 1982 - 1983
CX500C Custom - 1980-1982
CX500D Deluxe - 1980-1981
GL500 Silver Wing - 1981-1982
GL500I Silver Wing Interstate - 1981-1982
XL500S - 1979-1981
XR500 - 1979-1980
XR500R - 1981-1982
CB650 - 1979-1980
CB650C Custom - 1980
CB750C Custom 1980-1982
CB750F Super Sport - 1979-1982
CB750K - 1979-1982
CB750L LTD - 1979
CB750SC Nighthawk - 1982 - 1983
CB900C Custom - 1980 - 1982
CB900F Super Sport - 1981 - 1982
GL1100 Gold Wing - 1980 - 1983
GL1100A Gold Wing Aspencade - 1982-1983
GL1100I Gold Wing Interstate - 1980-1983