VT#: 11-9891
Wiseco piston set is .010 oversize and has a compression of 9:1. Piston set includes Hasting X rings, 2 wrist pins and 4 circlips. Pistons are forged from high silicone alloy.
**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.
XL Sportster® 1988-UP