106-5255 Easy Start gear drive 675 camshaft kit (IOG)

For massive 120-inch plus engines running at least 11:1 compression, the S&S 675 Easy Start gear drive kit is the professional choice for high-RPM performance between 4500 and 6500 RPM. This complete kit fits 1999 to 2006 Twin Cam models, excluding the 2006 Dyna, and includes inner and outer drive gears, bearings, and gaskets. The Easy Start mechanism ensures that even these monster engines can be fired up using a stock battery and starter motor by reducing cranking pressure. Given the very high lift of .675 inches, these cams require high-lift valve springs and clearancing. They are not compatible with kickstart models and perform best when the idle is adjusted to 1000-1100 RPM.