S&S CYCLE Flywheel Assembly — Displacement 131\", Stroke 4-5/8\" – 18-23 Softail, 17-23 Touring, 17-23 Trike, 17-23 CVO

Precision-machined flywheel assembly engineered for gear drive camshafts, providing consistent balance and smooth operation.

The balance gear is preinstalled for easy fitting, and the robust construction eliminates the need to weld the crankpin.

Heat-treated, high-strength steel increases hardness and offers up to twice the strength of stock components.

Connecting rods are optimized with finite element analysis (FEA) to remove weak spots; kit includes flywheel, crankpin, and connecting rods.

Made in the USA. Not recommended for compression ratios higher than 10.0:1 for Tri Glide or other three-wheel models (including conversion). Will not work with stock HD® Pistons.