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.
Fits: Kawasaki KLX140, Kawasaki KLX140L, Kawasaki KX100 B1-B6 >>> 428 Chain Conversion, Kawasaki KX100 B7 >>> 428 Chain Conversion, Kawasaki KX100 C1 >>> 428 Chain Conversion, Kawasaki KX100 C2 >>> 428 Chain Conversion, Kawasaki KX100 C3,D1-D9F,DBF-DDF,FEF-FLF,FMF >>> 428 Chain Conversion, Kawasaki KX80 G1-G2,H2 >>> 428 Chain Conversion, Kawasaki KX80 J1-J2 >>> 428 Chain Conversion, Kawasaki KX80 L2 >>> 428 Chain Conversion, Kawasaki KX80 L3 >>> 428 Chain Conversion, Kawasaki KX80 N2,N3 >>> 428 Chain Conversion, Kawasaki KX80 R1-R7 >>> 428 Chain Conversion, Kawasaki KX80 T1-T7 Big Wheel >>> 428 Chain Conversion, Kawasaki KX80 W1-W2 >>> 428 Chain Conversion, Kawasaki KX80 W3 >>> 428 Chain Conversion, Kawasaki KX80 Y1-Y3 Big Wheel >>> 428 Chain Conversion, Kawasaki KX85, Kawasaki KX85 A1-ADF,CEF-CNF,CNS,CNS,CPF,CRF.CSF >>> 428 Chain Conversion, Suzuki RM100 K3 >>> 428 Chain Conversion
Fitment
Kawasaki: KX80 G1-G2,H2 >>> 428 Chain Conversion 1986–1987 · KX80 L2 >>> 428 Chain Conversion 1989 · KX80 L3 >>> 428 Chain Conversion 1990 · KX80 R1-R7 >>> 428 Chain Conversion 1991–1997 · KX100 C2 >>> 428 Chain Conversion 1999 · KX80 W1-W2 >>> 428 Chain Conversion 1998–1999 · KX85 A1-ADF,CEF-CNF,CNS,CNS,CPF,CRF.CSF >>> 428 Chain Conversion 2001–2025 · KLX140 2008–2026 · KX80 W3 >>> 428 Chain Conversion 2000 · KX80 Y1-Y3 Big Wheel >>> 428 Chain Conversion 1998–2000 · KX85 2001–2025 · KX100 C1 >>> 428 Chain Conversion 1998 · KX100 C3,D1-D9F,DBF-DDF,FEF-FLF,FMF >>> 428 Chain Conversion 2000–2021 · KLX140L 2008–2026 · KX100 B7 >>> 428 Chain Conversion 1997 · KX80 J1-J2 >>> 428 Chain Conversion 1986–1987 · KX80 N2,N3 >>> 428 Chain Conversion 1989–1990 · KX80 T1-T7 Big Wheel >>> 428 Chain Conversion 1991–1997 · KX100 B1-B6 >>> 428 Chain Conversion 1991–1996
Suzuki: RM100 K3 >>> 428 Chain Conversion 2003
