VT#: 11-9945
Wiseco piston set is standard size and is for a 3-1/2" bore. Piston set has a compression of 8.5:1 and includes 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.
XL Sportster® 1986-UP