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Diameter: Ø 77.00 mm
Rings are the bands fitted on the piston that seal against the cylinder: they hold compression and limit oil getting past.
VERTEX offers this piston ring set for YAMAHA WR 250 F, YZ 250 F and FANTIC TF 250 ES from 2001 to 2014. Rings are thin steel bands sitting in the piston grooves. They press against the cylinder wall to hold compression and scrape oil.
The benefits:
Vertex has made its pistons in Italy since 1953 and has supplied KTM’s original pistons since 1996: molybdenum-disulphide coated skirt and Japanese rings. Its four-stroke pistons are forged from 2618 alloy.
Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.
No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 30 h in hard use and every 60 h for leisure.
Cross-Mania tip: Check the ring end gap in the cylinder before fitting and respect the fitting direction (mark facing up).
Check the exact model and year of your bike in the list below before ordering.
Fits:
FANTIC TF 250 ES 2014
FANTIC TF 250 ES 2013
FANTIC TF 250 ES 2012
YAMAHA WR 250 F 2014
YAMAHA WR 250 F 2013
YAMAHA WR 250 F 2012
YAMAHA WR 250 F 2011
YAMAHA WR 250 F 2010
YAMAHA WR 250 F 2009
YAMAHA WR 250 F 2008
YAMAHA WR 250 F 2007
YAMAHA WR 250 F 2006
YAMAHA WR 250 F 2005
YAMAHA WR 250 F 2004
YAMAHA WR 250 F 2003
YAMAHA WR 250 F 2002
YAMAHA WR 250 F 2001
YAMAHA YZ 250 F 2013
YAMAHA YZ 250 F 2012
YAMAHA YZ 250 F 2011
YAMAHA YZ 250 F 2010
YAMAHA YZ 250 F 2009
YAMAHA YZ 250 F 2008
YAMAHA YZ 250 F 2007
YAMAHA YZ 250 F 2006
YAMAHA YZ 250 F 2005
YAMAHA YZ 250 F 2004
YAMAHA YZ 250 F 2003
YAMAHA YZ 250 F 2002
YAMAHA YZ 250 F 2001
Click on your bike to see all compatible parts.
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