JT SPROCKETS steel front sprocket 420 pitch for HONDA CR 80, CRF 110, MBX 80 FWD, MT 50 S, MTX 80 RF 1977-2024

JT SPROCKETS offers this front sprocket for HONDA CR 80, CRF 110, MBX 80 FWD, MT 50 S, MTX 80 RF 1977-2024. 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 MT 50 S?

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 version: Standard
• Optimal lightweight design
• CNC machined for performance and lifespan

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 : JT SPROCKETS · RFX
• Drive chain : AFAM A420MX2-G · AFAM A420R1-G
• 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:
HONDA CR 60 1986
HONDA CR 60 1985
HONDA CR 80 1985
HONDA CR 80 1984
HONDA CR 80 1983
HONDA CR 80 1982
HONDA CR 80 1980
HONDA CRF 110 2024
HONDA CRF 110 2023
HONDA CRF 110 2016
HONDA CRF 110 2015
HONDA CRF 110 2014
HONDA CRF 110 2013
HONDA MBX 80 FWD 1985
HONDA MBX 80 FWD 1984
HONDA MBX 80 FWD 1983
HONDA MT 50 S 1993
HONDA MT 50 S 1992
HONDA MT 50 S 1991
HONDA MT 50 S 1990
HONDA MT 50 S 1989
HONDA MT 50 S 1988
HONDA MT 50 S 1987
HONDA MT 50 S 1986
HONDA MT 50 S 1985
HONDA MT 50 S 1984
HONDA MT 50 S 1983
HONDA MT 50 S 1982
HONDA MT 50 S 1981
HONDA MT 50 S 1980
HONDA MTX 80 1982
HONDA MTX 80 R2 1987
HONDA MTX 80 RF 1985
HONDA MTX 80 RF 1984
HONDA MTX 80 RF 1983
HONDA MTX 80 RS 1985
HONDA MTX 80 RS 1984
HONDA MTX 80 RS 1983
HONDA XL 50 S 1980
HONDA XL 75 1979
HONDA XL 75 1978
HONDA XL 75 1977
HONDA XR 70 1999
HONDA XR 70 1998
HONDA XR 70 1997
HONDA Z 50 1982
HONDA Z 50 1981
HONDA Z 50 1980