Hastings Piston Ring Set - 2M6198 For Harley Sportster 1986-2003 LIGHTING 1988 Polaris Trail Boss 250

1988 Polaris Trail Boss 250 ES 1988 Polaris Trail Boss 250 R 1989-1992 Polaris Trail Boss 250 2x4 1989-1993 Polaris Trail Boss 250 4x4 1990-2006 Polaris Trail Blazer 250 1990-1993 Polaris Trail Boss 350L 2x4 1990-1993 Polaris Trail Boss 350L 4x4 1991

Give the handlebar a cleaner

Fits with stock control lines

Revolver version features remote preload adjuster

2001-2008 KTM 50 SX Pro Junior 2002-2005 KTM 50 SX Pro Senior 2006-2008 KTM 50 SX 2008 KTM 50 SX Mini

Hastings Piston Ring Set - 2M6198 For Harley Sportster 1986-2003 LIGHTING 1988 Polaris Trail Boss 250Features Includes top compression rings, second compression rings, and oil control rings Top Compression Rings are Barrel Face Helps in the the heat transfer process between the piston and cylinder wall Controls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft Second Compression Ring are Napier Reverse twist ring along with a taper machined ring face duplicates the OD bottom side