VT#: 11-9890
Wiseco piston set is standard size and has 9:1 compression. Piston set includes X rings, 2 wrist pins and 4 circlips. Pistons are forged from a 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