VT#: 11-0207
Replica style 3" bore piston set has a 9:1 compression ratio and is oversize .070. Piston set alloy is cast in a permanent steel mold 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® 1957-1971