KYB 43 mm Inner Fork Bushing (OEM) for KAWASAKI, HONDA, YAMAHA and BETA 1991-2020

The KYB KYB-50043 inner fork bushing is designed for KAWASAKI KLX 250, KX 125, KX 250, KX 500, YAMAHA TTR 250, YZ 125, YZ 250, HONDA CR 125, CR 250, XR 600 and BETA XTRAINER 300 from 1991 to 2020. 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-50043
• 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 : SKF · ATHENA
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork dust seals : ATHENA P40FORK455098 · ATHENA P40FORK455131

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:
BETA XTRAINER 300 2020
BETA XTRAINER 300 2019
BETA XTRAINER 300 2018
BETA XTRAINER 300 2017
BETA XTRAINER 300 2016
BETA XTRAINER 300 2015
HONDA CR 125 1996
HONDA CR 125 1995
HONDA CR 125 1994
HONDA CR 250 1995
HONDA XR 600 2000
HONDA XR 600 1999
HONDA XR 600 1998
HONDA XR 600 1997
HONDA XR 600 1996
HONDA XR 600 1995
HONDA XR 600 1994
HONDA XR 600 1993
HONDA XR 600 1992
HONDA XR 600 1991
KAWASAKI KLX 250 2016
KAWASAKI KLX 250 2015
KAWASAKI KLX 250 2014
KAWASAKI KLX 250 2013
KAWASAKI KLX 250 2012
KAWASAKI KLX 250 2011
KAWASAKI KLX 250 2010
KAWASAKI KLX 250 2009
KAWASAKI KLX 250 2008
KAWASAKI KLX 250 2007
KAWASAKI KLX 250 2006
KAWASAKI KLX 250 2005
KAWASAKI KLX 250 2004
KAWASAKI KLX 250 2003
KAWASAKI KLX 250 2002
KAWASAKI KLX 250 2001
KAWASAKI KLX 250 2000
KAWASAKI KLX 250 1999
KAWASAKI KLX 250 1998
KAWASAKI KLX 250 1997
KAWASAKI KLX 250 1996
KAWASAKI KLX 250 1995
KAWASAKI KLX 250 1994
KAWASAKI KLX 250 1993
KAWASAKI KX 125 1995
KAWASAKI KX 125 1994
KAWASAKI KX 125 1993
KAWASAKI KX 125 1992
KAWASAKI KX 125 1991
KAWASAKI KX 250 1995
KAWASAKI KX 250 1994
KAWASAKI KX 250 1993
KAWASAKI KX 250 1992
KAWASAKI KX 250 1991
KAWASAKI KX 500 1995
KAWASAKI KX 500 1994
KAWASAKI KX 500 1993
KAWASAKI KX 500 1992
KAWASAKI KX 500 1991
YAMAHA TTR 250 2006
YAMAHA TTR 250 2005
YAMAHA TTR 250 2004
YAMAHA YZ 125 1995
YAMAHA YZ 125 1994
YAMAHA YZ 125 1993
YAMAHA YZ 125 1992
YAMAHA YZ 125 1991
YAMAHA YZ 250 1995
YAMAHA YZ 250 1994
YAMAHA YZ 250 1993
YAMAHA YZ 250 1992
YAMAHA YZ 250 1991