The QS4 USB (Stand Alone Quick Shift) is an updated version of the popular Bazzaz QS-4 Quick Shift. Customer feedback on the QS-4 led Bazzaz to develop a new shift sensor for improved reliability, which now also includes an application specific shift rod for ease of installation. The QS4 USB unit employs race proven technology for seamless, full power, clutch-less up shifting. It has user adjustable gear dependent kill times allowing for optimal shifting in all gears. The kit comes complete with control unit, harnessing, shift switch, and shift rod. Shift light output allows the user to set a signal to indicate to the rider precise shift points to aid the rider in shifting at exact moment for optimal drive determined by tuner.