S&S CYCLE 551G Gear Drive Camshaft Kit — 551 Series, Gear – 06, 08, 12-17 Dyna, 07-17 CVO, 09-16 Trike, 10-11 Touring, 07-17 Softail

Built for 96 to 106 CID engines with 9:1 to 9.9:1 compression, this bolt-in cam set reverses the rear cam's rotation to provide additional operating clearance between cam lobes, enabling higher cam lifts and more usable power across the rev range. ⚙️

Delivers improved low- and midrange torque, strongest from 1,000–4,000 rpm, and increases valve timing accuracy by eliminating timing chain lash and loose stock chains.

Installation requires material removal from the inner surface of the stock gear cover and a hydraulic press; professional tools and experienced installation are required.

• Kit includes inner gears, outer gears, inner and outer bearings, gaskets, and instructions.
• Cam bearings and gaskets must be replaced when installing new cams; S&S recommends using an adjustable pushrod/cover kit.
• Installer must check coil bind, valve-to-valve clearance, and valve-to-piston clearance; not recommended for compression ratios of 10:1 or greater.
• Due to the inherent characteristics of gear drives, you may experience increased valve train noise; can be used with stock pushrods, springs, and lifters.

Made in the USA. 🔧