MOTO-MASTER Ultralight Front Sprocket for KAWASAKI KX 60, 65, 80, 85, 100, YAMAHA PW, TTR 50, 80, 90 and SUZUKI RM 65 1981-2026

The MOTO-MASTER front sprocket is designed for KAWASAKI KX 60, KX 65, KX 80, KX 85, KX 100, YAMAHA PW 80, TTR 50, TTR 90 and SUZUKI RM 65 from 1981 to 2026. The front sprocket drives the chain at the gearbox output. Small and working hard, it wears faster than the rear sprocket: it's also the simplest way to change the bike's gearing.

Specifications

• Brand: MOTO-MASTER
• Manufacturer part numbers: 610241112, 610241113, 610241114, 610241115
• Chain pitch: 420
• Material: steel
• Available versions: 12 Teeth: ref. 610241112; 13 Teeth: ref. 610241113; 14 Teeth: ref. 610241114; 15 Teeth: ref. 610241115
• Weight: 140 g

Choosing the right number of teeth

Start from the stock number of teeth. One tooth less on the front sprocket shortens the gearing (more acceleration, ideal on tight terrain); one tooth more lengthens it (more speed on fast tracks). One tooth on the front sprocket is worth roughly three to four teeth on the rear sprocket.

When to replace it?

• Teeth thinned, pointed or hooked.
• Chain that jumps or slaps under acceleration.
• Play between the sprocket and the shaft, or marked splines.

Check it every time you service the chain and replace it along with the rear sprocket and the chain. Many riders change the front sprocket with every new chain, because it wears much faster than the rear sprocket.

Fitting tips

1. Loosen the sprocket nut or bolt while holding the rear wheel with the brake, before slackening the chain.
2. Clean the countershaft and check the oil seal behind the sprocket.
3. Fit the sprocket the right way round, with a lock washer or threadlocker as on the original assembly, and tighten to the manufacturer's torque.
4. Set the chain tension and lube it with chain lube.

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

• Rear sprocket : RFX · PBR
• Drive chain : AFAM A420MX2-G · AFAM A420R1-G
• Chain lube : LIQUI MOLY 400 ml · MUC OFF

Frequently asked questions

Should the rear sprocket be changed too?
If it's worn, yes: a new front sprocket running on a tired rear sprocket and chain is worn out within a few hours.

Compatibility

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

Fits:
KAWASAKI KX 60 2004
KAWASAKI KX 60 2003
KAWASAKI KX 60 2002
KAWASAKI KX 60 2001
KAWASAKI KX 60 2000
KAWASAKI KX 60 1999
KAWASAKI KX 60 1998
KAWASAKI KX 60 1997
KAWASAKI KX 60 1996
KAWASAKI KX 60 1995
KAWASAKI KX 60 1994
KAWASAKI KX 60 1993
KAWASAKI KX 60 1992
KAWASAKI KX 60 1991
KAWASAKI KX 60 1990
KAWASAKI KX 60 1989
KAWASAKI KX 60 1988
KAWASAKI KX 60 1987
KAWASAKI KX 60 1986
KAWASAKI KX 60 1985
KAWASAKI KX 65 2026
KAWASAKI KX 65 2025
KAWASAKI KX 65 2024
KAWASAKI KX 65 2023
KAWASAKI KX 65 2022
KAWASAKI KX 65 2021
KAWASAKI KX 65 2020
KAWASAKI KX 65 2019
KAWASAKI KX 65 2018
KAWASAKI KX 65 2017
KAWASAKI KX 65 2016
KAWASAKI KX 65 2015
KAWASAKI KX 65 2014
KAWASAKI KX 65 2013
KAWASAKI KX 65 2012
KAWASAKI KX 65 2011
KAWASAKI KX 65 2010
KAWASAKI KX 65 2009
KAWASAKI KX 65 2008
KAWASAKI KX 65 2007
KAWASAKI KX 65 2006
KAWASAKI KX 65 2005
KAWASAKI KX 65 2004
KAWASAKI KX 65 2003
KAWASAKI KX 65 2002
KAWASAKI KX 65 2001
KAWASAKI KX 65 2000
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 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 2026
KAWASAKI KX 100 2025
KAWASAKI KX 100 2024
KAWASAKI KX 100 2023
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
KAWASAKI KX 100 2005
KAWASAKI KX 100 2004
KAWASAKI KX 100 2003
KAWASAKI KX 100 2002
KAWASAKI KX 100 2001
KAWASAKI KX 100 2000
KAWASAKI KX 100 1999
KAWASAKI KX 100 1998
KAWASAKI KX 100 1997
KAWASAKI KX 100 1996
KAWASAKI KX 100 1995
KAWASAKI KX 100 1994
KAWASAKI KX 100 1993
KAWASAKI KX 100 1992
KAWASAKI KX 100 1991
KAWASAKI KX 100 1990
KAWASAKI KX 100 1989
KAWASAKI KX 100 1988
KAWASAKI KX 100 1987
SUZUKI RM 65 2006
SUZUKI RM 65 2005
SUZUKI RM 65 2004
SUZUKI RM 65 2003
YAMAHA PW 80 2009
YAMAHA PW 80 2008
YAMAHA PW 80 2007
YAMAHA PW 80 2006
YAMAHA PW 80 2005
YAMAHA PW 80 2004
YAMAHA PW 80 2003
YAMAHA PW 80 2002
YAMAHA PW 80 2001
YAMAHA PW 80 2000
YAMAHA PW 80 1999
YAMAHA PW 80 1998
YAMAHA PW 80 1997
YAMAHA PW 80 1996
YAMAHA PW 80 1995
YAMAHA PW 80 1994
YAMAHA PW 80 1993
YAMAHA PW 80 1992
YAMAHA PW 80 1991
YAMAHA TTR 50 2012
YAMAHA TTR 50 2011
YAMAHA TTR 50 2010
YAMAHA TTR 50 2009
YAMAHA TTR 50 2008
YAMAHA TTR 50 2007
YAMAHA TTR 50 2006
YAMAHA TTR 90 2004
YAMAHA TTR 90 2003
YAMAHA TTR 90 2002
YAMAHA TTR 90 2001
YAMAHA TTR 90 2000