JT Sprockets
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JT Sprockets 630 Steel Rear Sprocket, 39T (JTR501.39)

Part # JTR501.39
Item #207044
Fits 44 motorcycles
  • Kawasaki
    • KZ750 H1-H4 (LTD) · 1981–1983
    • Z750 H1-H3,LTD · 1980–1982
    • KZ650 H1-H3 (CSR) · 1981–1983
    • KZ700 A1/A1L · 1984
    • GPZ750 (Z750 L3-L4 Sport) · 1982–1987
    • GPZ750 (Z750R1) · 1982
    • KZ750 E1/E2/E3 · 1980–1982
    • KZ750 R1 (GPz) · 1982
    • KZ750 L3 · 1983
    • Z750 C3
    • Z750 E1 · 1980
    • Z750 L1-L2 · 1981–1982
    • KZ1000 A1/A2/A2A · 1977–1978
    • KZ1000 B1/B2/B3/B4 (LTD) · 1977–1981
    • KZ1000 D1 (Z1-R Series) · 1978
    • KZ1000 G1 Classic · 1980
    • Z1000 A1 · 1977–1978
    • Z1000 A4 · 1977–1978
    • Z1000 D1 (Z1R) · 1978–1980
    • Z650 F2-F4 · 1979–1983
    • KZ1000 A3/A3A/A4 · 1979–1980
    • KZ1000 C3/C4 Police · 1980–1981
    • KZ1000 D3 (Z1-R Series) · 1980
    • Z1000 H1
    • KZ1000 C1/C2 Police · 1978–1979
    • GPZ750 (ZX750A1-A5) Unitrack · 1983–1989
    • KZ1000 K1/K2 (LTD) · 1981–1982
    • KZ1000 M1/M2 (CSR) · 1981–1982
    • Z1000 K1,K2, LTD · 1981–1982
    • GPZ1100 (ZX1100 B2) · 1982
    • KZ1000 J1-J3 · 1981–1983
    • KZ1000 P1 Police · 1982
    • KZ1000 P2-P20 Police · 1983–2001
    • KZ1000 R1-R2 (Replica) · 1982–1983
    • Z1000 J1-J3 · 1981–1982
    • Z1000 R2 · 1983
    • GPZ1100 (ZX1100 B1) · 1981
    • GPZ1100 A1-A3 (ZX) Unitrack · 1983–1985
    • KZ1100 B1 (GPz) · 1981
    • Z1100 R1 · 1984–1986
    • ZX1100 A1-A2 (GPz) · 1983–1984
    • ZX1100 A2L (GPz) · 1984
    • KZ1100 B2 (GPz) · 1982
    • GPZ750 Turbo (ZX750 E1-E2) · 1984–1985
$36.99
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets Steel Rear Sprocket — JTR501.39 (39T)
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.
  • Available in zinc-black (zbk) and self-cleaning (SC) variants on select tooth counts.
  • Built by JT Sprockets — the world's largest sprocket manufacturer, with sprocket production for major OE bike brands.
  • Sized for 520 pitch across stock and shorter/taller gearing options.

Spec: type: rear_sprocket · teeth: 39 · part_number: JTR501.39

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