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

Part # JTF427.12
Item #JT42712
Fits 14 motorcycles
  • Suzuki
    • RM100 N,T,X,Z <<< 520 Chain Conversion · 1979–1982
    • RM125 · 1980–1982
    • RM125 · 1988–2011
    • RM125 D · 1983
    • RM125 E · 1984
    • RM125 F · 1985
    • RM125 G · 1986
    • RM125 H · 1987
    • RM125 K5 · 2005
    • RM125 L2 · 2012
    • PE175 · 1978–1984
    • RS175 · 1980–1982
    • RM-Z250 K7 · 2007
    • RM-Z250 · 2007–2012
$11.99
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  • In stock, ready to ship
  • Backordered, shipping soon
  • Flat $10 U.S. shipping, free over $100
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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.

Fitment

Suzuki: RM100 N,T,X,Z <<< 520 Chain Conversion 1979–1982 · RM125 1980–1982 · RM125 1988–2011 · RM125 D 1983 · RM125 E 1984 · RM125 F 1985 · RM125 G 1986 · RM125 H 1987 · RM125 K5 2005 · RM125 L2 2012 · PE175 1978–1984 · RS175 1980–1982 · RM-Z250 K7 2007 · RM-Z250 2007–2012

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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