Replica 900cc Piston Set .040 Oversize for Harley Sportster

Description

Replica style 3" bore piston set has a 9:1 compression ratio and is oversize .040. 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."