This is basically a reversed-spiral version of our Internal Throttle Assembly that can be used on the left side of the bars to operate a cable. What you use it for is your business, but we originally developed it to activate the clutch. The spiral is twice as steep as the throttle assembly to double the amount of leverage that is applied to the cable. We use it routinely on our bikes in combination with our ‘universal’ Twist Clutch Cable to activate the stock HD clutch or the Primo diaphragm clutch resulting in a smooth, light twisting operation at the grip – and super-clean bars! Our Twist Clutch will, of course, work with other clutches, but remember that the stronger your clutch springs the harder the grip will be to twist.
Also available with 'regular' spiral angles for use as a left sided throttle.