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Vortex Steel Rear Sprocket 520 — Black (641AS)

Part # 641AS-47
Item #641AS-47
Fits 18 motorcycles
  • Yamaha
    • FJ1100 · 1984–1985
    • FJ1200 · 1986–1993
    • FZ6R · 2009–2017
    • FZ8 · 2010–2015
    • FZR1000 · 1989–1995
    • FZR1000 · 1987–1995
    • FZR750 · 1987–1988
    • FZR750 · 1989–1991
    • FZS600 FAZER · 2000–2003
    • GTS1000 · 1993–1994
    • MT 07 · 2025–2026
    • TDM 900 · 2002–2014
    • XJ6 DIVERSION · 2009–2015
    • YZF R7 · 2026
    • YZF600 THUNDERCAT · 1994–2007
    • YZF600 THUNDERCAT · 1995–2007
    • YZF750 · 1994–1998
    • YZF750 · 1993
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Teeth
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Vortex Steel Rear Sprocket 520 — Black (641AS)
Product Details

Laser-cut carbon steel rear sprockets from Vortex Racing, designed to outlast aluminum while trimming rotating mass through precision-cut relief pockets — a durable street and track option available in 520, 525, and 530 pitches.

  • Laser cut from carbon steel
  • Finished in a durable satin finish
  • Weight-saving cutouts reduce rotating mass without compromising strength
  • Longer lasting than aluminum sprockets
  • Available in 520, 525, and 530 chain pitches
  • Made in the USA

Spec: Position: Rear · Teeth: 47 · Material: Steel · Finish: Black · Chain Pitch: 520

Fitment

Yamaha: FJ1100 1984–1985 · FJ1200 1986–1993 · FZ6R 2009–2017 · FZ8 2010–2015 · FZR1000 1989–1995 · FZR1000 1987–1995 · FZR750 1987–1988 · FZR750 1989–1991 · FZS600 FAZER 2000–2003 · GTS1000 1993–1994 · MT 07 2025–2026 · TDM 900 2002–2014 · XJ6 DIVERSION 2009–2015 · YZF R7 2026 · YZF600 THUNDERCAT 1994–2007 · YZF600 THUNDERCAT 1995–2007 · YZF750 1994–1998 · YZF750 1993

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