KYB 36 mm Inner Fork Bushing (OEM) for KAWASAKI KX 80, KX 85, KX 100 and YAMAHA YZ 65, YZ 80, YZ 85 1993-2026

On YAMAHA YZ 65, YZ 80, YZ 85 and KAWASAKI KX 80, KX 85, KX 100 from 1993 to 2026, the KYB KYB-50036 inner fork bushing fits in place of the original part. The inner fork bushing (slide bushing) is fitted at the bottom of the inner tube: together with the outer fork bushing, it guides the sliding of the fork. Its PTFE (Teflon) coating reduces friction; once worn, the bronze shows through, the fork binds and the oil seals wear out faster.

Specifications

• Brand: KYB
• Manufacturer part number: KYB-50036
• Slide bushing fitted at the bottom of the inner tube (PTFE-coated outside)

When to replace it?

• Grey coating worn through: the copper or bronze shows on the bushing.
• Play in the fork when you rock the bike back and forth with the front brake on.
• Fork that binds at the start of its stroke, oil seals that leak again and again.

Check the bushings every time you replace the oil seals or change the fork oil. Replace them as soon as the bronze shows over more than a quarter of their surface.

Fitting tips

1. Disassemble the fork leg following the manual and separate the outer tube from the inner tube.
2. Spread the bushing slightly by hand at its split to lift it out of its groove, without scratching the tube.
3. Fit the new bushing in the groove, then install new oil seals.
4. Reset the fork oil level as per the manual.

Why KYB?

KYB, long known as Kayaba, was born in Japan in November 1919, when 21-year-old Shiro Kayaba opened his research centre. Now one of the world's leading hydraulics specialists, with more than 15,000 employees, the brand describes its Gifu North plant, opened in 1968, as the largest shock absorber factory in the world.

Spare parts and items to plan

• Fork oil seals : ATHENA P40FORK455035 · ATHENA P40FORK455024
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork dust seals : ATHENA

Frequently asked questions

Do I have to change both bushings?
Check the outer and inner bushings on both legs: they wear together. Replace all those that show bronze.

Compatibility

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

Fits:
KAWASAKI KX 80 2011
KAWASAKI KX 80 2010
KAWASAKI KX 80 2009
KAWASAKI KX 80 2001
KAWASAKI KX 80 2000
KAWASAKI KX 80 1999
KAWASAKI KX 80 1998
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 100 2022
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
YAMAHA YZ 65 2026
YAMAHA YZ 65 2025
YAMAHA YZ 65 2024
YAMAHA YZ 65 2023
YAMAHA YZ 65 2022
YAMAHA YZ 65 2021
YAMAHA YZ 65 2020
YAMAHA YZ 65 2019
YAMAHA YZ 65 2018
YAMAHA YZ 80 2001
YAMAHA YZ 80 2000
YAMAHA YZ 80 1999
YAMAHA YZ 80 1998
YAMAHA YZ 80 1997
YAMAHA YZ 80 1996
YAMAHA YZ 80 1995
YAMAHA YZ 80 1994
YAMAHA YZ 80 1993
YAMAHA YZ 85 2026
YAMAHA YZ 85 2025
YAMAHA YZ 85 2024
YAMAHA YZ 85 2023
YAMAHA YZ 85 2022
YAMAHA YZ 85 2021
YAMAHA YZ 85 2020
YAMAHA YZ 85 2019
YAMAHA YZ 85 2018
YAMAHA YZ 85 2017
YAMAHA YZ 85 2016
YAMAHA YZ 85 2015
YAMAHA YZ 85 2014
YAMAHA YZ 85 2013
YAMAHA YZ 85 2012
YAMAHA YZ 85 2011
YAMAHA YZ 85 2010
YAMAHA YZ 85 2009
YAMAHA YZ 85 2008
YAMAHA YZ 85 2007
YAMAHA YZ 85 2006