KYB 41 mm Inner Fork Bushing (OEM) for HONDA, KAWASAKI, YAMAHA and SUZUKI 1977-2017

The KYB KYB-50041 inner fork bushing is designed for KAWASAKI KDX 200, KLR 650, KX 125, KX 250, KX 500, YAMAHA WR 200, YZ 125, YZ 250, HONDA CR 250, XR 250 and SUZUKI RM 125, RM 250 from 1977 to 2017. 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-50041
• 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 OSB-41K · SKF OSB-43K
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork dust seals : ATHENA P40FORK455226 · 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:
HONDA CR 250 1979
HONDA CR 250 1978
HONDA CR 250 1977
HONDA XR 250 2007
HONDA XR 250 2006
HONDA XR 250 2005
HONDA XR 250 2004
HONDA XR 250 2003
HONDA XR 250 2002
HONDA XR 250 2001
HONDA XR 250 2000
HONDA XR 250 1999
HONDA XR 250 1998
HONDA XR 250 1997
HONDA XR 250 1996
HONDA XR 250 1995
HONDA XR 250 1994
HONDA XR 250 1993
HONDA XR 250 1992
HONDA XR 250 1991
HONDA XR 250 1990
HONDA XR 250 1989
HONDA XR 250 1988
HONDA XR 250 1987
KAWASAKI KDX 200 1994
KAWASAKI KLR 650 2017
KAWASAKI KLR 650 2016
KAWASAKI KLR 650 2015
KAWASAKI KLR 650 2014
KAWASAKI KLR 650 2013
KAWASAKI KLR 650 2012
KAWASAKI KLR 650 2011
KAWASAKI KLR 650 2010
KAWASAKI KLR 650 2009
KAWASAKI KLR 650 2008
KAWASAKI KLR 650 2007
KAWASAKI KLR 650 2006
KAWASAKI KLR 650 2005
KAWASAKI KX 125 1990
KAWASAKI KX 250 1990
KAWASAKI KX 500 1990
SUZUKI RM 125 1990
SUZUKI RM 250 1990
SUZUKI RM 250 1989
YAMAHA WR 200 1993
YAMAHA WR 200 1992
YAMAHA YZ 125 1990
YAMAHA YZ 125 1989
YAMAHA YZ 250 1990
YAMAHA YZ 250 1989