JT Sprockets
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JT Sprockets 525 Steel Rear Sprocket, 40T (JTR713.40)

Part # JTR713.40
Item #987887
Fits 12 motorcycles
  • Aprilia
    • 1000 RSV4 Factory · 2009–2014
    • 1000 RSV4 R / APRC · 2011–2015
    • 1000 RSV4 Factory Racing LE · 2017
    • 1000 RSV4 RF · 2015–2021
    • 1000 RSV4 RR · 2016–2021
    • 1100 RSV4 Racing Factory · 2019–2022
    • 1000 RSV4 Factory APRC · 2011–2014
    • 1000 RSV4 Factory APRC SE · 2011–2014
    • 1000 Tuono V4 R / APRC · 2012–2016
    • 1100 Tuono V4 RR · 2015–2023
    • 1100 Tuono V4 Factory · 2015–2023
    • 1100 Tuono V4 Superpole · 2021–2023
$36.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Rear Sprocket — JTR713.40 (40T)
Product Details

A C49 high-carbon steel rear sprocket — JT's bread-and-butter replacement that swaps in like the OEM part for hundreds of street and sport fitments.

  • C49 high-carbon steel, induction-hardened on the tooth crowns for wear life that outlasts cheap stamped aluminum on the street.
  • CNC-machined to OEM bolt pattern and profile so it lines up to your hub without modification.
  • Same fitment universe as JT's zinc-black (ZBK) and self-cleaning (SC) variants on this base.
  • Built by JT Sprockets — the world's largest sprocket manufacturer, with sprocket production for major OE bike brands.
  • Sized to OEM gearing with shorter/taller tooth-count options available on select fitments.

Intended use: street, sport, sport-touring, adventure.

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