MOTO-MASTER Fusion Dual-Material Steel/Aluminium Rear Sprocket (black) for KAWASAKI and SUZUKI 1982-2026

The MOTO-MASTER Fusion (noire) dual-material steel and aluminium rear sprocket is designed for KAWASAKI KDX 200, KDX 250, KLX 250, KLX 300, KLX 450, KLX 650, KX 125, KX 250, KX 500, KXF 250, KXF 450 and SUZUKI RMZ 250 from 1982 to 2026. The rear sprocket is the large sprocket bolted to the rear wheel hub. A dual-material sprocket combines steel teeth, which resist wear, with an aluminium centre that keeps the weight down: you get the service life of steel at a weight close to that of an aluminium sprocket.

Specifications

• Brand: MOTO-MASTER
• Manufacturer part numbers: 620053248, 620053249, 620053250, 620053251, 620053252
• Chain pitch: 520
• Steel toothed ring, aluminium centre
• Available versions: 48 Teeth: ref. 620053248; 49 Teeth: ref. 620053249; 50 Teeth: ref. 620053250; 51 Teeth: ref. 620053251; 52 Teeth: ref. 620053252
• Weight: 800 g

Choosing the right number of teeth

For the same bike, go for the number of teeth of your current sprocket (it's often stamped on it). More teeth on the rear sprocket shortens the gearing: more acceleration, lower top speed. Fewer teeth lengthens it. Even one or two teeth make a clear difference; if you change a lot, the chain length may need adjusting.

When to replace it?

• Teeth worn to a point or into a hook shape, worn down on one side only.
• Chain that lifts away from the sprocket when you pull it rearwards.
• Drivetrain noise, jerkiness or a chain that jumps under load.

Check the sprocket every time you service the chain. Always replace the rear sprocket, front sprocket and chain together: a new part running with worn ones wears out very quickly.

Fitting tips

1. Clean the hub and check that it isn't cracked or distorted.
2. Fit the sprocket the right way round (markings facing out) and tighten the bolts in a criss-cross pattern to the manufacturer's torque, with medium-strength threadlocker if the manual calls for it.
3. While you're at it, replace the front sprocket and the chain if they're worn.
4. Set the chain tension as per the manual, with the wheel aligned, then lube it with a suitable chain lube.
5. Recheck the bolt tightness and the chain tension after the first ride.

Why MOTO-MASTER?

In motocross, Moto-Master was working with the Red Bull KTM Factory Racing team as early as 2010, and it backed the MXGP world championship in 2015. On the technical side, the Flame profile of its discs is designed to improve cooling and go easy on the pads, and its Racing GP sintered pads use a backing plate with hooks (NRS technology) that stops the friction material from coming away.

Spare parts and items to plan

• Front sprocket : JT SPROCKETS 45 teeth, 520 pitch for K… · JT SPROCKETS front sprocket 14 teeth,…
• Drive chain : AFAM · RENTHAL 520
• Chain lube : LIQUI MOLY 400 ml · SCOTTOILER

Frequently asked questions

What's the advantage over an aluminium sprocket?
The steel teeth last much longer, especially in mud or sand, for barely any extra weight.

Should the chain be replaced at the same time?
Yes, if it's worn: a stretched chain wears out a new sprocket in a few hours.

Compatibility

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

Fits:
KAWASAKI KDX 200 2006
KAWASAKI KDX 200 2005
KAWASAKI KDX 200 2004
KAWASAKI KDX 200 2003
KAWASAKI KDX 200 2002
KAWASAKI KDX 200 2001
KAWASAKI KDX 200 2000
KAWASAKI KDX 200 1999
KAWASAKI KDX 200 1998
KAWASAKI KDX 200 1997
KAWASAKI KDX 200 1996
KAWASAKI KDX 200 1995
KAWASAKI KDX 200 1994
KAWASAKI KDX 200 1993
KAWASAKI KDX 200 1992
KAWASAKI KDX 200 1991
KAWASAKI KDX 200 1990
KAWASAKI KDX 200 1989
KAWASAKI KDX 200 1988
KAWASAKI KDX 200 1987
KAWASAKI KDX 200 1986
KAWASAKI KDX 200 1985
KAWASAKI KDX 200 1984
KAWASAKI KDX 250 1996
KAWASAKI KDX 250 1995
KAWASAKI KDX 250 1994
KAWASAKI KDX 250 1993
KAWASAKI KDX 250 1992
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 KLX 250 1992
KAWASAKI KLX 250 1991
KAWASAKI KLX 250 1990
KAWASAKI KLX 250 1989
KAWASAKI KLX 250 1988
KAWASAKI KLX 250 1987
KAWASAKI KLX 250 1986
KAWASAKI KLX 250 1985
KAWASAKI KLX 250 1984
KAWASAKI KLX 250 1983
KAWASAKI KLX 250 1982
KAWASAKI KLX 300 2007
KAWASAKI KLX 300 2006
KAWASAKI KLX 300 2005
KAWASAKI KLX 300 2004
KAWASAKI KLX 300 2003
KAWASAKI KLX 300 2002
KAWASAKI KLX 300 2001
KAWASAKI KLX 300 2000
KAWASAKI KLX 300 1999
KAWASAKI KLX 300 1998
KAWASAKI KLX 300 1997
KAWASAKI KLX 450 2026
KAWASAKI KLX 450 2025
KAWASAKI KLX 450 2024
KAWASAKI KLX 450 2023
KAWASAKI KLX 450 2022
KAWASAKI KLX 450 2021
KAWASAKI KLX 450 2020
KAWASAKI KLX 450 2019
KAWASAKI KLX 450 2018
KAWASAKI KLX 450 2017
KAWASAKI KLX 450 2016
KAWASAKI KLX 450 2015
KAWASAKI KLX 450 2014
KAWASAKI KLX 450 2013
KAWASAKI KLX 450 2012
KAWASAKI KLX 450 2011
KAWASAKI KLX 450 2010
KAWASAKI KLX 450 2009
KAWASAKI KLX 450 2008
KAWASAKI KLX 650 2003
KAWASAKI KLX 650 2002
KAWASAKI KLX 650 2001
KAWASAKI KLX 650 2000
KAWASAKI KLX 650 1999
KAWASAKI KLX 650 1998
KAWASAKI KLX 650 1997
KAWASAKI KLX 650 1996
KAWASAKI KLX 650 1995
KAWASAKI KLX 650 1994
KAWASAKI KLX 650 1993
KAWASAKI KX 125 2008
KAWASAKI KX 125 2007
KAWASAKI KX 125 2006
KAWASAKI KX 125 2005
KAWASAKI KX 125 2004
KAWASAKI KX 125 2003
KAWASAKI KX 125 2002
KAWASAKI KX 125 2001
KAWASAKI KX 125 2000
KAWASAKI KX 125 1999
KAWASAKI KX 125 1998
KAWASAKI KX 125 1997
KAWASAKI KX 125 1996
KAWASAKI KX 125 1995
KAWASAKI KX 125 1994
KAWASAKI KX 125 1993
KAWASAKI KX 125 1992
KAWASAKI KX 125 1991
KAWASAKI KX 125 1990
KAWASAKI KX 125 1989
KAWASAKI KX 125 1988
KAWASAKI KX 125 1987
KAWASAKI KX 125 1986
KAWASAKI KX 125 1985
KAWASAKI KX 125 1984
KAWASAKI KX 125 1983
KAWASAKI KX 250 2008
KAWASAKI KX 250 2007
KAWASAKI KX 250 2006
KAWASAKI KX 250 2005
KAWASAKI KX 250 2004
KAWASAKI KX 250 2003
KAWASAKI KX 250 2002
KAWASAKI KX 250 2001
KAWASAKI KX 250 2000
KAWASAKI KX 250 1999
KAWASAKI KX 250 1998
KAWASAKI KX 250 1997
KAWASAKI KX 250 1996
KAWASAKI KX 250 1995
KAWASAKI KX 250 1994
KAWASAKI KX 250 1993
KAWASAKI KX 250 1992
KAWASAKI KX 250 1991
KAWASAKI KX 250 1990
KAWASAKI KX 250 1989
KAWASAKI KX 250 1988
KAWASAKI KX 250 1987
KAWASAKI KX 250 1986
KAWASAKI KX 250 1985
KAWASAKI KX 250 1984
KAWASAKI KX 250 1983
KAWASAKI KX 250 1982
KAWASAKI KX 500 2004
KAWASAKI KX 500 2003
KAWASAKI KX 500 2002
KAWASAKI KX 500 2001
KAWASAKI KX 500 2000
KAWASAKI KX 500 1999
KAWASAKI KX 500 1998
KAWASAKI KX 500 1997
KAWASAKI KX 500 1996
KAWASAKI KX 500 1995
KAWASAKI KX 500 1994
KAWASAKI KX 500 1993
KAWASAKI KX 500 1992
KAWASAKI KX 500 1991
KAWASAKI KX 500 1990
KAWASAKI KX 500 1989
KAWASAKI KX 500 1988
KAWASAKI KX 500 1987
KAWASAKI KX 500 1986
KAWASAKI KX 500 1985
KAWASAKI KX 500 1984
KAWASAKI KX 500 1983
KAWASAKI KXF 250 2026
KAWASAKI KXF 250 2025
KAWASAKI KXF 250 2024
KAWASAKI KXF 250 2023
KAWASAKI KXF 250 2022
KAWASAKI KXF 250 2021
KAWASAKI KXF 250 2020
KAWASAKI KXF 250 2019
KAWASAKI KXF 250 2018
KAWASAKI KXF 250 2017
KAWASAKI KXF 250 2016
KAWASAKI KXF 250 2015
KAWASAKI KXF 250 2014
KAWASAKI KXF 250 2013
KAWASAKI KXF 250 2012
KAWASAKI KXF 250 2011
KAWASAKI KXF 250 2010
KAWASAKI KXF 250 2009
KAWASAKI KXF 250 2008
KAWASAKI KXF 250 2007
KAWASAKI KXF 250 2006
KAWASAKI KXF 250 2005
KAWASAKI KXF 250 2004
KAWASAKI KXF 450 2026
KAWASAKI KXF 450 2025
KAWASAKI KXF 450 2024
KAWASAKI KXF 450 2023
KAWASAKI KXF 450 2022
KAWASAKI KXF 450 2021
KAWASAKI KXF 450 2020
KAWASAKI KXF 450 2019
KAWASAKI KXF 450 2018
KAWASAKI KXF 450 2017
KAWASAKI KXF 450 2016
KAWASAKI KXF 450 2015
KAWASAKI KXF 450 2014
KAWASAKI KXF 450 2013
KAWASAKI KXF 450 2012
KAWASAKI KXF 450 2011
KAWASAKI KXF 450 2010
KAWASAKI KXF 450 2009
KAWASAKI KXF 450 2008
KAWASAKI KXF 450 2007
KAWASAKI KXF 450 2006
SUZUKI RMZ 250 2006
SUZUKI RMZ 250 2005
SUZUKI RMZ 250 2004