VT#: 11-2246
Keith Black flat top piston set is .005 oversize and is for 3.498" bore. Piston set has a compression ratio of 8.9:1 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® 1988-UP