Pro X Piston Kit - 01.2114.B Yamaha YZ 85 2002-2026 Brand_Arlen Ness longer main breather exit nipples

longer main breather exit nipples with dual O-rings to promote better breather system sealing

1988-2006 Yamaha YFS200 Blaster

6" w/155" Track 2020 Polaris RMK 850 KHAOS 3" w/155" 2020 Polaris Rush 800 Pro-S 1

Units Kit Type Fork Riding Style Street Inside Diameter 39

Requires use of the OEM upper tubes

Pro X Piston Kit - 01.2114.B Yamaha YZ 85 2002-2026 Brand_Arlen Ness longer main breather exit nipplesFeatures Manufactured in Japan and designed to be OEM replacement Cast from a high silicon content aluminum alloy that meets or exceeds OEM specifications, then CNC machined to extremely close tolerances Kit includes piston, ring kit, wrist pin, and circlips Specs Piston Size 47. 45 mm Bore Oversize Standard Engine Type 2 Stroke Product Name Piston Kit Displacement 85 cc Bore Size 47. 50 mm Compression Ratio Standard Units Kit Skirt Coating Moly