RENTHAL steel front sprocket 520 pitch for KTM LC4 640, HUSQVARNA SUPERMOTO 701 and GAS GAS ES 700 1988-2026

RENTHAL offers this front sprocket for KTM LC4 620 ENDURO SX WP, LC4 640, LC4 640 ADVENTURE, LC4 640 ADVENTURE R, MX 600, HUSQVARNA NORDEN 901, NORDEN 901 EXPEDITION, SUPERMOTO 701 and GAS GAS ES 700, SM 700 1988-2026. 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?

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

Specifications and fitting tips

• Chain pitch: 520
• Material: Steel
• Front sprocket version: Standard
• Standard version
• Made from a nickel-chrome-molybdenum alloy: greater strength

Choose the number of teeth from the list: fewer teeth on the front sprocket (or more on the rear) gives more acceleration, the opposite gives a longer gearing.

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 : PBR · AFAM
• Drive chain : RENTHAL · AFAM
• Chain lube : LIQUI MOLY 400 ml · MUC OFF 400 ml

Compatibility

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

Fits:
GAS GAS ES 700 2026
GAS GAS ES 700 2025
GAS GAS ES 700 2024
GAS GAS ES 700 2023
GAS GAS ES 700 2022
GAS GAS SM 700 2026
GAS GAS SM 700 2025
GAS GAS SM 700 2024
GAS GAS SM 700 2023
GAS GAS SM 700 2022
HUSQVARNA NORDEN 901 2024
HUSQVARNA NORDEN 901 2023
HUSQVARNA NORDEN 901 2022
HUSQVARNA NORDEN 901 EXPEDITION 2024
HUSQVARNA NORDEN 901 EXPEDITION 2023
HUSQVARNA SUPERMOTO 701 2024
HUSQVARNA SUPERMOTO 701 2023
HUSQVARNA SUPERMOTO 701 2022
HUSQVARNA SUPERMOTO 701 2021
HUSQVARNA SUPERMOTO 701 2020
HUSQVARNA SUPERMOTO 701 2019
HUSQVARNA SUPERMOTO 701 2018
HUSQVARNA SUPERMOTO 701 2017
KTM GS 600 1993
KTM GS 600 1992
KTM GS 600 1991
KTM GS 600 1990
KTM LC4 400 2000
KTM LC4 400 1999
KTM LC4 400 1998
KTM LC4 620 ENDURO SUPER-COMP 1998
KTM LC4 620 ENDURO SUPER-COMP 1997
KTM LC4 620 ENDURO SUPER-COMP 1996
KTM LC4 620 ENDURO SUPER-COMP 1995
KTM LC4 620 ENDURO SX WP 1998
KTM LC4 620 ENDURO SX WP 1997
KTM LC4 620 ENDURO SX WP 1996
KTM LC4 620 ENDURO SX WP 1995
KTM LC4 620 ENDURO SX WP 1994
KTM LC4 620 ENDURO SXC WP 1997
KTM LC4 640 2006
KTM LC4 640 2005
KTM LC4 640 2004
KTM LC4 640 2003
KTM LC4 640 2002
KTM LC4 640 2001
KTM LC4 640 2000
KTM LC4 640 1999
KTM LC4 640 ADVENTURE 2007
KTM LC4 640 ADVENTURE 2006
KTM LC4 640 ADVENTURE 2005
KTM LC4 640 ADVENTURE 2004
KTM LC4 640 ADVENTURE 2003
KTM LC4 640 ADVENTURE R 2004
KTM LC4 640 ADVENTURE R 2003
KTM LC4 640 ADVENTURE R 2002
KTM LC4 640 ADVENTURE R 2001
KTM LC4 640 ADVENTURE R 2000
KTM LC4 640 ADVENTURE R 1999
KTM LC4 640 ADVENTURE R 1998
KTM MX 600 1992
KTM MX 600 1991
KTM MX 600 1990
KTM MX 600 1989
KTM MX 600 1988
KTM SXC 625 2006
KTM SXC 625 2005
KTM SXC 625 2004
KTM SXC 625 2003