ATHENA Needle Bearing for KAWASAKI KX 80, KX 85, KX 100, KX 112 1981-2027

The ATHENA MNB140180172 small-end needle bearing is designed for KAWASAKI KX 80, KX 85, KX 100, KX 112 from 1981 to 2027. The small-end needle bearing lets the piston pin turn inside the connecting rod on fine steel needles. On a two-stroke, it is lubricated only by the premix: it wears quickly and, if it breaks, it destroys the piston and the cylinder.

Specifications

• Brand: ATHENA
• Manufacturer part number: MNB140180172
• EAN code: 8050043262141
• Dimensions: 14x18x17.2 mm
• Weight: 10 g
• Engine: 2-stroke

When to replace it?

• Play between the piston pin and the connecting rod.
• Needles blued or marked, or cage damaged.
• Metallic knocking from the top end.

At every piston change on a two-stroke, and as soon as play appears.

Fitting tips

1. Check the small-end bore and the piston pin: if they are marked, replace them.
2. Oil the bearing before fitting it.
3. Fit the pin and new circlips, gap opposite the notch in the piston.
4. Reassemble the top end with a new top end gasket kit.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Piston : VERTEX · METEOR
• Piston pin : WOSSNER
• Top-end gasket kit : ATHENA S410250006 · ATHENA S410250001058

Frequently asked questions

Which bearing should I choose?
The one that matches your engine's dimensions (inner diameter x outer diameter x width), given in the specifications.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KX 80 2000
KAWASAKI KX 80 1999
KAWASAKI KX 80 1998
KAWASAKI KX 80 1997
KAWASAKI KX 80 1996
KAWASAKI KX 80 1995
KAWASAKI KX 80 1994
KAWASAKI KX 80 1993
KAWASAKI KX 80 1992
KAWASAKI KX 80 1991
KAWASAKI KX 80 1990
KAWASAKI KX 80 1989
KAWASAKI KX 80 1988
KAWASAKI KX 80 1987
KAWASAKI KX 80 1986
KAWASAKI KX 80 1985
KAWASAKI KX 80 1984
KAWASAKI KX 80 1983
KAWASAKI KX 80 1982
KAWASAKI KX 80 1981
KAWASAKI KX 85 2027
KAWASAKI KX 85 2026
KAWASAKI KX 85 2025
KAWASAKI KX 85 2024
KAWASAKI KX 85 2023
KAWASAKI KX 85 2022
KAWASAKI KX 85 2021
KAWASAKI KX 85 2020
KAWASAKI KX 85 2019
KAWASAKI KX 85 2018
KAWASAKI KX 85 2017
KAWASAKI KX 85 2016
KAWASAKI KX 85 2015
KAWASAKI KX 85 2014
KAWASAKI KX 85 2013
KAWASAKI KX 85 2012
KAWASAKI KX 85 2011
KAWASAKI KX 85 2010
KAWASAKI KX 85 2009
KAWASAKI KX 85 2008
KAWASAKI KX 85 2007
KAWASAKI KX 85 2006
KAWASAKI KX 85 2005
KAWASAKI KX 85 2004
KAWASAKI KX 85 2003
KAWASAKI KX 85 2002
KAWASAKI KX 85 2001
KAWASAKI KX 100 2021
KAWASAKI KX 100 2020
KAWASAKI KX 100 2019
KAWASAKI KX 100 2018
KAWASAKI KX 100 2017
KAWASAKI KX 100 2016
KAWASAKI KX 100 2015
KAWASAKI KX 100 2014
KAWASAKI KX 100 2013
KAWASAKI KX 100 2012
KAWASAKI KX 100 2011
KAWASAKI KX 100 2010
KAWASAKI KX 100 2009
KAWASAKI KX 100 2008
KAWASAKI KX 100 2007
KAWASAKI KX 100 2006
KAWASAKI KX 112 2027
KAWASAKI KX 112 2026
KAWASAKI KX 112 2025
KAWASAKI KX 112 2024
KAWASAKI KX 112 2023
KAWASAKI KX 112 2022