JT Sprockets
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JT Sprockets 520 Steel Front Sprocket, 13T (JTF1590.13)

Part # JTF1590.13
Item #987700
Fits 59 motorcycles
  • Gas Gas
    • 250 EC 4T · 2011–2012
    • 250 EC F 4T · 2012
    • 250 EC F 4T · 2013–2015
    • 250 EC Six Days · 2011–2012
    • 300 EC F · 2013–2015
    • 300 EC F Six Days 4T · 2012
    • 450 EC F · 2013–2015
  • Yamaha
    • YZ125 T,V,W,X,Y,Z,A1,B,D2,E2,F2,G2,H2,J2,K2 · 2005–2019
    • YZ125 L2,M2 · 2020–2021
    • YZ125 N2L · 2022
    • YZ125 P2L · 2023
    • YZ125 RL · 2024
    • YZ125 RSE 50th Anniversary Ed. · 2024
    • YZ125 SL · 2025
    • YZ125 SME Monster Energy Ed · 2025
    • YZ125 TL · 2026
    • YZ125 TSE 70th Anniversary Ed. · 2026
    • YZ125 X-L,M · 2020–2021
    • YZ125 X-L,N,P · 2022–2023
    • YZ125 X-R · 2024
    • YZ125 X-S · 2025
    • YZ125 X-T · 2026
    • WR250 FN (Enduro Version) · 2001
    • WR250 F-N,P,R,S,T,V (Off Road Version) · 2001–2006
    • WR250 F-W,X,Y,Z (Off Road Version) · 2007–2010
    • WR250 F-F,G,H,J,K,L (Off Road Version) · 2015–2020
    • WR250 F-M,N,P (Off Road Version) · 2021–2023
    • WR250 F-R (Off Road Version) · 2024
    • WR250 F-S (Off Road Version) · 2025
    • WR250 F-T1 (Off Road Version) · 2026
    • WR250 F-A,B,D,E,F,G,H,J (Off Road Version) · 2011–2019
    • WR250 F-L (Off Road Version) · 2020
    • WR250 F-M,N,P,R (Off Road Version) · 2021–2024
    • WR250 F-S1 (Off Road Version) · 2025
    • WR250 R-X,Y,Z,A,B,D,E,F,G,H,J,K,L · 2008–2020
    • WR250 X-X,Y,A,B,D,E,F · 2008–2015
    • YZ250 F-N,P,R,S (4-Stroke) · 2001–2004
    • YZ250 F-T,V,W,X,Y (4-Stroke) · 2005–2009
    • YZ250 F-Z,A,B,D (4-Stroke) · 2010–2013
    • YZ250 F-E,F,G,H,J,K,L,M (4-Stroke) · 2014–2021
    • YZ250 F-N,P (4-Stroke) · 2022–2023
    • YZ250 F-R,S (4-Stroke) · 2024–2025
    • YZ250 F-T (4-Stroke) · 2026
    • YZ250 F-RSE 50th Anniversary Edition · 2024
    • YZ250 F-TSE 70th Anniversary Edition (4-Stroke) · 2026
    • YZ250 F-G 60th Anniversary Edition · 2016
    • YZ250 F-Z,A · 2011
    • YZ250 F-B,D,E,F,G,H,K,L,M · 2012–2021
    • YZ250 F-NL,P2L,RL · 2022–2024
    • YZ250 FMME Monster · 2021
    • YZ250 FNME Monster · 2022
    • YZ250 FPME Monster · 2023
    • YZ250 FSME Monster · 2025
    • YZ250 FX-F,G,H,J,K,L1,M · 2015–2021
    • YZ250 FX-N,P · 2022–2023
    • YZ250 FX-R · 2024
    • YZ250 FX-S · 2025
    • YZ250 FX-T · 2026
    • WR250 F-Z ,A,B,D,E (Off Road Version) · 2010–2014
$12.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Front Sprocket — JTF1590.13 (13T)
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.

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