JT Sprockets
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JT Sprockets 428 Steel Front Sprocket, 14T (JTF558.14)

Part # JTF558.14
Item #JT55814
Fits 16 motorcycles
  • Kawasaki
    • Ninja 125 · 2019-2024
    • Ninja 125 · 2026
    • Z125 Pro · 2021-2024
    • Z125 Pro · 2026
  • Yamaha
    • DT 125 X · 2005-2006
    • DT125 · 2004-2006
    • DT200 · 1988
    • DTR125 · 1988-2003
    • TDR125 · 1989-2001
    • TZR125 · 1993-2000
    • TZR80 · 1996
    • V-Star 125 Drag Star · 2000-2004
    • Virago 250 · 2001-2004
    • YZ85 · 2002-2023
    • YZ85 · 2025-2026
    • YZ85 R · 2024-2025
$7.99
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WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
JT Sprockets Steel Front Sprocket — JTF558.14 (14T)
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 27 motorcycles across Yamaha, Kawasaki, Derbi, Gilera — including Yamaha YZ85 2002–2023; Yamaha YZ85 R2 2024; Yamaha YZ85 S2 2025; Yamaha YZ85 T2 2026; Yamaha YZ85 P LW 2023; Yamaha YZ85 R LW 2024; Yamaha YZ85 S LW 2025; Yamaha YZ85 T LW 2026. 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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