RENTHAL steel front sprocket 15T, 420 pitch for HONDA CR 80, CR 85, CRF 50, CRF 70, NX 125 1980-2027

RENTHAL offers this front sprocket for HONDA CR 80, CR 85, CRF 50, CRF 70, NX 125 1980-2027. The front sprocket sits on the gearbox output shaft and passes the engine’s power to the chain, which turns the rear sprocket and the rear wheel.

Why replace the front sprocket?

The benefits:

• An inexpensive part that protects a new chain and rear sprocket.
• Made of steel to withstand much heavier wear than the rear sprocket.
• Changing the number of teeth is the simplest, cheapest way to alter the gearing.

When should you replace the front sprocket on your HONDA CRF 50?

Dished or hooked teeth: replace it straight away, otherwise it will ruin a new chain within hours.

Specifications and fitting tips

• Chain pitch: 420
• Material: Steel
• Front sprocket teeth count: 15
• Front sprocket version: Self-cleaning
• Anti-mud: improved evacuation of mud for maximum and constant efficiency
• Made from a nickel-chrome-molybdenum alloy: greater strength
• Manufacturer part number: 259--420-15GP

Cross-Mania tip: Replace the front sprocket together with the chain and rear sprocket, renew the sprocket nut or circlip and check the output shaft seal.

Also needed with this part

• Rear sprocket : AFAM · RENTHAL
• Drive chain : AFAM A420R1-G · AFAM A420MX2-G
• Chain lube : LIQUI MOLY 400 ml · LIQUI MOLY 250 ml

Compatibility

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

Fits:
HONDA CR 80 2002
HONDA CR 80 2001
HONDA CR 80 2000
HONDA CR 80 1999
HONDA CR 80 1998
HONDA CR 80 1997
HONDA CR 80 1996
HONDA CR 80 1995
HONDA CR 80 1994
HONDA CR 80 1993
HONDA CR 80 1992
HONDA CR 80 1991
HONDA CR 80 1990
HONDA CR 80 1989
HONDA CR 80 1988
HONDA CR 80 1987
HONDA CR 80 1986
HONDA CR 80 1985
HONDA CR 85 2007
HONDA CR 85 2006
HONDA CR 85 2005
HONDA CR 85 2004
HONDA CR 85 2003
HONDA CRF 50 2027
HONDA CRF 50 2026
HONDA CRF 50 2025
HONDA CRF 50 2024
HONDA CRF 50 2023
HONDA CRF 50 2022
HONDA CRF 50 2021
HONDA CRF 50 2020
HONDA CRF 50 2019
HONDA CRF 50 2018
HONDA CRF 50 2017
HONDA CRF 50 2016
HONDA CRF 50 2015
HONDA CRF 50 2014
HONDA CRF 50 2013
HONDA CRF 50 2012
HONDA CRF 50 2011
HONDA CRF 50 2010
HONDA CRF 50 2009
HONDA CRF 50 2008
HONDA CRF 50 2007
HONDA CRF 50 2006
HONDA CRF 50 2005
HONDA CRF 50 2004
HONDA CRF 70 2012
HONDA CRF 70 2011
HONDA CRF 70 2010
HONDA CRF 70 2009
HONDA CRF 70 2008
HONDA CRF 70 2007
HONDA CRF 70 2006
HONDA CRF 70 2005
HONDA CRF 70 2004
HONDA NX 125 1997
HONDA NX 125 1996
HONDA NX 125 1995
HONDA NX 125 1994
HONDA NX 125 1993
HONDA NX 125 1992
HONDA NX 125 1991
HONDA NX 125 1990
HONDA XL 125 S 1983
HONDA XL 125 S 1982
HONDA XL 125 S 1981
HONDA XL 125 S 1980