JT Sprockets
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JT Sprockets 420 Steel Front Sprocket (JTF546)

Part # JTF546.13
Item #JT54613
Fits 59 motorcycles
  • Yamaha
    • YZ60 H · 1981
    • DT50 · 1988–1991
    • TT-R50 · 2006–2026
    • YZ60 · 1982–1984
    • DTR50 (DT50R) · 1988–1996
    • LB50 3M Bop
    • RZ50
    • V50
    • V75 · 1977
    • V80
    • TT-R90 · 2000–2004
    • TT-R90 E · 2004–2007
    • MX100 · 1979–1983
    • RT100 · 1990–2000
    • TT-R110 E · 2008–2025
    • LB50 Chappy
    • LB50 2M Chappy · 1986–1994
    • LB50 · 1978–1982
    • LB80 · 1976–1978
    • RD80 LC 1 · 1982
    • V90 · 1975–1978
    • DT100 · 1977–1983
    • RS100 · 1980–1982
    • RSX100 (RXS100)
    • 115 Crypton S · 2018–2019
    • BW80 · 1986–1988
    • BW80 A · 1990
    • PW80 · 1983–1985
    • PW80 · 1991–2006
    • FS80 SE
    • LB80 Chappy
    • YB100 · 1979–1980
    • YB100 E · 1980–1994
  • Kawasaki
    • KX60 · 1983–2003
    • KX65 · 2000–2026
    • Ninja H2 · 1986–1987
    • KX80 · 1979–1982
    • KX80 · 1986–1987
    • KX80 · 1989–2000
    • KX80 L1 · 1988
    • KX80 L2 · 1989
    • KX80 L3 · 1990
    • KX85 · 2001–2025
    • KX100 · 1987–1996
    • KX100 · 2000–2021
    • KX100 B7 · 1997
    • KX100 C1 · 1998
    • KX100 C2 · 1999
    • KX112 · 2022–2023
    • KX112 ARF · 2024
    • KX112 ASF · 2025
    • KX80 E1 · 1983
    • KX80 E2 · 1984
    • KX80 E3 · 1985
    • KX80 N1 · 1988
    • KX80 W3 · 2000
  • Suzuki
    • RM60 K3 · 2003
    • RM65 · 2003–2005
    • RM100 K3 · 2003
$6.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets 420 Steel Front Sprocket (JTF546)
Product Details

A direct-fit C49 high-carbon steel front sprocket from the world's largest sprocket maker — the standard for stock replacement on modern street, sport, and adventure bikes.

  • Self-cleaning SCM420 chromoly steel and C49 carbon steel construction, induction-hardened on the tooth profile for a hard wear surface over a tough core.
  • CNC-machined to OEM tooth profile so your existing chain runs without re-meshing issues.
  • Available with rubber-cushion damping inserts on select fitments — same noise/vibration spec as the OE part.
  • JT Sprockets is the world's largest sprocket manufacturer; produced in JT's UK and Thailand facilities to ISO-grade QC.
  • Sized for OEM gearing across most road, sport, and adventure platforms.

Intended use: street, sport, sport-touring, adventure.

Fitment

Fits 59 motorcycles across Yamaha, Kawasaki, Suzuki — including Yamaha YZ60 H 1981; Yamaha DT50 1988–1991; Kawasaki KX60 1983–2003; Kawasaki KX65 2000–2026; Kawasaki Ninja H2 1986–1987; Kawasaki KX80 1979–1982; Kawasaki KX80 1986–1987; Kawasaki KX80 1989–2000. Verify fit for your exact bike with the fitment checker at garamoto.com.

Specifications

Sprocket PositionFront
MaterialC45 high carbon steel and SCM415 chromoly steel alloy
Surface TreatmentHeat-treated and beadblasted
Best ForOff-road / Trail, Street

Verified from Garamoto’s catalog & fitment data.

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