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

Name: JT Sprockets 520 Steel Front Sprocket, 13T (JTF1590.13)
Brand: JT Sprockets
SKU: 987700
Price: 12.99 USD
Availability: OutOfStock

Part # JTF1590.13

Item #987700

Fits 40 motorcycles

Gas Gas
- 250 EC 4T · 2011–2012
- 250 EC F 4T · 2012–2015
- 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 · 2005–2023
- YZ125 · 2026
- 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-R · 2024
- YZ125 X-S · 2025
- WR250 FN (Enduro Version) · 2001
- WR250F · 2001–2024
- WR250 F-R (Off Road Version) · 2024
- WR250 F-S (Off Road Version) · 2025
- WR250 F-T1 (Off Road Version) · 2026
- WR250 F-L (Off Road Version) · 2020
- WR250 F-S1 (Off Road Version) · 2025
- WR250R Sport R · 2008–2020
- WR250X · 2008–2015
- YZ250F · 2001–2025
- 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 FMME Monster · 2021
- YZ250 FNME Monster · 2022
- YZ250 FPME Monster · 2023
- YZ250 FSME Monster · 2025
- YZ250FX · 2015–2023
- YZ250 FX-R · 2024
- YZ250 FX-S · 2025
- YZ250 FX-T · 2026

$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.

Fitment

Fits 40 motorcycles across Yamaha, Gas Gas — including Gas Gas 250 EC 4T 2011–2012; Gas Gas 250 EC F 4T 2012–2015; Gas Gas 250 EC Six Days 2011–2012; Gas Gas 300 EC F 2013–2015; Gas Gas 300 EC F Six Days 4T 2012; Gas Gas 450 EC F 2013–2015; Yamaha YZ125 2005–2023; Yamaha YZ125 2026. Verify fit for your exact bike with the fitment checker at garamoto.com.

Specifications

Sprocket Position	Front
Material	C49 high carbon steel and SCM420 chromoly steel alloy
Surface Treatment	Heat-treated and beadblasted
Best For	Off-road / Trail, Street

Verified from Garamoto’s catalog & fitment data.