For bikes with fuel injectors with EV6 type connectors. Plug & Play installation. Installs in place of the stock shifter rod. The incorporated shifter switch will momentarily stop de fuel flow from the injectors when you shift. Works for up shift only. Allows quick shifting without closing the throttle or pulling the clutch. This quick shifter is a plug and play kit with no other components required. Adjustments to sensitivity and shift force is adjustable on the device; no computer required. - Enjoy faster acceleration with seamless upshifts. - Plug-and-play installation. - Eases hand fatigue; no pulling for pulling the clutch lever or to let off the throttle when shifting. - Maximizes comfort and performance. - Developed for Harley-Davidson Big Twin motorcycles with EV-6 injector connectors.**Dynojet product not available to purchase by Dealers located in the UK**