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JT Sprockets 420 Steel Rear Sprocket, 34T (JTR212.34)

Part # JTR212.34
Item #982828
Fits 7 motorcycles
  • Honda
    • 110 Astrea Grand · 2017-2018
    • 125 Supra-X · 2017-2018
    • Grom MSX125 · 2013-2020
    • Innova · 2003-2014
    • Monkey · 2019-2021
    • Wave 110 · 2012-2014
    • Z125 · 2019-2021
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WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
JT Sprockets Steel Rear Sprocket — JTR212.34 (34T)
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.

Fitment

  • Honda MSX125 (Grom 125) 2013–2020
  • Honda Monkey 2019–2021
  • Honda ANF125 Innova 2003–2012
  • Honda 125 Innova / 125i Innova 2003–2014
  • Honda 125 Supra-X / Helmin 2017–2018
  • Honda 110 Astrea Grand (Euro 3) 2017–2018
  • Honda 110 Astrea Grand (Euro 4) 2017–2018
  • Honda 110 Wave 2012–2014

Specifications

Sprocket PositionRear
MaterialC45 high carbon steel
Surface TreatmentHeat-treated and beadblasted
Best ForOff-road / Trail, Street

Verified from Garamoto’s catalog & fitment data.

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