Andrews 26Hg Gear Drive Camshafts For Harley Twin Cam Features: Bolt-in cam for lower RPM torque on heavier bikes More torque with stock compression Can be used with stock valve springs and tappets Great for two-up touring, this cam will add torque and HP at lower and middle RPM ranges (1700-5200) Experience increased horsepower over chain driven cams Eliminate the need to keep replacing worn out chain tensioner shoes Works well with carbs or fuel injection