S&S Cycle 106-5224 Easy Start Gear Drive Camshaft Kit - 585GE

The S&S Cycle 585GE Easy Start Gear Drive Camshaft Kit is a high-performance upgrade designed to improve valve timing accuracy and starting performance for Harley-Davidson Twin Cam engines. This complete kit features gear drive technology that eliminates timing chain lash, providing superior precision compared to chain drive systems.

Key Features:

• 0.585 inch lift camshafts optimized for 88-96 inch engines with 10:1 to 10.5:1 compression ratios, or 100-107 inch engines with 9.7:1 to 10.5:1 compression
• Easy Start technology reduces cranking compression during starting, allowing stock starters to reliably start high-compression engines
• Gear drive design eliminates timing chain lash for improved valve timing accuracy and eliminates concerns about chain failure
• Complete kit includes camshafts with inner gears and installation hardware
• Bolt-in design compatible with stock valve springs on 2007-2016 models
• Optimized cam timing delivers improved engine performance throughout the powerband

Technical Specifications:

• Intake centerline: 102.5°
• Exhaust centerline: 110.0°
• Intake duration at 0.020: 245°
• Exhaust duration at 0.020: 260°
• Intake valve timing: 20°/45°
• Exhaust valve timing: 60°/20°
• Lift at TDC intake: 0.186 inch
• Lift at TDC exhaust: 0.179 inch

Installation Notes:

• Professional installation recommended - requires hydraulic press and specialized tools
• Material must be removed from inner surface of stock gearcover
• Pinion shaft run-out must be checked before installation
• Fuel injection tuning required for optimal performance
• Due to gear drive characteristics, some increase in valvetrain noise is normal

Designed specifically for 2006 Harley-Davidson Dyna and 2007-2016 Big Twin models. This premium camshaft kit is engineered to overcome the starting difficulties often experienced with big-inch, high-compression engines while delivering enhanced performance throughout the RPM range.