Forged Standard 10.5:1 Piston Kit - Wiseco K1685 - Evolution Sportster 1988+

Wiseco #: K1685

Wiseco piston set is standard size for 1200cc models and has compression of 10.5:1. Set includes Hasting X rings.

**Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.

Fitment:

Installation instructions (PDF)