Rick's Motorsport Electrics offers this Lithium Ion battery compatible rectifier regulator that is designed with a lower voltage set point to work with lithium ion batteries. This is an upgraded design that eliminates the use of the OE black wire and it i

Fits

Aprilia: 01-07 ETV1000 Caponord 1000cc; 01-04 RST1000 Futura 1000cc