JT Sprockets
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JT Sprockets 520 Steel Front Sprocket, 12T (JTF427.12)

Part # JTF427.12
Item #JT42712
Fits 21 motorcycles
  • Suzuki
    • RM100 N,T,X,Z <<< 520 Chain Conversion · 1979–1982
    • RM125 T,X,Z · 1980–1982
    • RM125 D · 1983
    • RM125 E · 1984
    • RM125 F · 1985
    • RM125 G · 1986
    • RM125 H · 1987
    • RM125 N,P,R,S,T · 1992–1996
    • RM125 V,W,X · 1997–1999
    • RM125 Y,K1,K2,K3,K4,K5 · 2000–2005
    • RM125 K5 · 2005
    • RM125 K6,K7,K8,K9,L0,L1 · 2006–2011
    • RM125 L2 · 2012
    • PE175 C,N · 1978–1979
    • PE175 T,X · 1980–1981
    • PE175 Z,D,E · 1982–1984
    • RS175 T,X,Z · 1980–1982
    • RM-Z250 K7 · 2007
    • RM-Z250 K7,K8,K9 · 2007–2009
    • RM125 J,K,L,M · 1988–1991
    • RM-Z250 L0,L1,L2 · 2010–2012
$11.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Front Sprocket — JTF427.12 (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.

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