Pingel Electric Easy Shift Speed Shifter Kit For Harley Sportster Features Electronically suspends the ignition system, allowing the transmission to smoothly shift up or down with just the push of a button Shift up at a partial or full throttle and back down at the touch of a button There is no need to use the foot shifter and the clutch is used only when starting or stopping Works for normal street riding or full throttle shifting OEM shifting ability is retained after installing Not suitable for 4-speed transmissions