900cc Piston and Ring Set by V-Twin Manufacturing

Fits 1957-1971 Harley Ironhead Sportster

0.30 Oversize

Cast Alloy

Sold as a kit

Replica style 3" bore piston set has a 9:1 compression ratio and is oversize .030.

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.