Chain drive .574" int. .574" exh. Replacement cams for use in combination with the stock hydraulic chain tensioner system. Compatible with stock length pushrods. Bolt-in for 96/103/110". All-round performance cam with smooth cam lobes performance pushrods & lifters recommended but not required. 99-04 TC 88/95 require high lift valve springs. Responds well to head modifications & higher compression ratios. 06-17 Dyna 07-17 Softail 07-16 Touring (NU)