JT Sprockets
Back to MX Drivetrain - Sprockets, Chains, Wheel Bearings

JT Sprockets 428 Steel Front Sprocket, 12T (JTF428.12)

Part # JTF428.12
Item #JT42812
Fits 18 motorcycles
  • Hyosung
    • 110 Midas
  • Suzuki
    • DR-Z50 · 2019–2026
    • JR80 D,F,G,H,J,K,L,M,N,P,R,S,T,V,W,X,Y,K1,K2,K3 · 1982–2003
    • JR80 K4 · 2004
    • DR-Z70 K8,K9,L0-L8 · 2008–2018
    • RM80 B · 1977
    • RM80 N,T,X · 1979–1981
    • RM80 Z · 1982
    • RGV120
    • RM80 C · 1978
    • RM80 T/X · 1980–1981
    • GT80 E,X3 · 1981–1982
    • GT80 L,X · 1981–1982
    • TS80 ER,X,Z · 1981–1982
    • 110 Shogun
    • RG80
  • Yamaha
    • YZ80 E,F · 1978–1979
    • YZ80 G · 1980
$7.99
/
Shipping calculated at checkout.
  • Low stock - 6 items left
  • Backordered, shipping soon
  • Free U.S. shipping on orders $150+ ($15 flat under)
  • Ships from one of three U.S. warehouses
  • Secure checkout
WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Front Sprocket — JTF428.12 (12T)
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.

You may also like