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JT Sprockets 525 Steel Rear Sprocket, 45T (JTR10.45)

Part # JTR10.45
Item #210032
Fits 25 motorcycles
  • BMW
    • F800 GS · 2023–2026
    • F750 GS · 2018–2024
    • F850 GS · 2018–2024
    • F850 GS Adventure · 2018–2024
    • F850 GS Adventure · 2024
    • F850 Trophy · 2024
    • F900 R · 2020–2021
    • F900 R · 2022
    • F900 R · 2023
    • F900 R · 2024–2026
    • F900 GS Adventure · 2023–2026
    • F900 XR · 2020–2021
    • F900 XR · 2022
    • F900 XR · 2023
    • F900 XR · 2024–2026
    • S1000 R · 2021–2026
    • S1000 RR · 2019–2020
    • S1000 RR · 2021–2023
    • S1000 XR · 2020–2021
    • S1000 XR · 2022–2026
    • M1000 RR · 2021–2026
    • S1000 RR · 2024–2026
    • F900 GS · 2023–2026
    • M1000 R · 2022–2026
    • M1000 XR · 2024–2026
$36.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Rear Sprocket — JTR10.45 (45T)
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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