S&S CYCLE 132" High Compression / 136" Big Bore Kit — 132"/136", 4-1/2"–4-5/8" stroke – 19-26 Softail, 19-26 Touring, 20-25 Trike, 20-25 CVO

Upgrade your V-twin with a high-compression big-bore solution that improves torque, throttle response, and low-end power. 🔧

This kit is engineered for performance builds and requires the correct flywheel assembly when increasing bore size; flywheel sold separately. ⚙️

Precision-machined components ensure reliable fitment and improved cooling where needed. 🔩