Rick's Motorsport Electrics Aftermarket Lithium Ion Compatible Rectifier-Regulator is designed with a lower voltage set point to work with lithium ion batteries. 

Direct replacement for OEM piece made with the correct set point to work with lithium ion batteries

IMPORTANT NOTE: Rec-reg is not for use with standard lead acid batteries. The voltage set point is 14 V +/- .2. Please contact the manufacturer of your lithium ion battery to ensure our product has the correct set point for their product.

Fits Honda:

CB750C Custom - 1980-1982
CB750F Super Sport - 1979-1982
CB750K Four - 1979-1982
CB750L - 1979
CB750SC Nighthawk - 1982-1983
CB900C Custom - 1980-1982
CB900F Super Sport - 1981-1982
CB1000C Custom - 1983
CB1100F - 1983