Honda CG125 Heavy-duty 428H Chain & Sprocket Kit — 116L, 15T Front / 38T Rear
Aftermarket 428H chain and 15/38-tooth sprocket set for suitable custom-gearing Honda CG125 applications. The supplied chain is listed as 116 links. This is alternative gearing, not a factory-standard ready-to-fit kit for every CG125 model or year.
Product Overview
Supplied as a set comprising a heavy-duty-specification drive chain, a 15-tooth front sprocket and a 38-tooth rear sprocket. Compare the sprocket mounting patterns and required finished chain length before purchasing.
Specifications
- Chain: 428H heavy-duty specification
- Supplied chain length: 116 links
- Front sprocket: 15 teeth
- Rear sprocket: 38 teeth
- Chain colour: see supplied photographs
- Application: alternative 15/38 gearing on compatible Honda CG125 drivetrains
Vehicle Compatibility and Original Specifications
The table below is a comparison guide, not a blanket direct-fit claim. Original gearing and chain length varied considerably. Only order after comparing the physical sprocket mounts and chain adjustment requirements on your motorcycle.
| Make | Model | Years | Catalogue standard front/rear | Standard links | Catalogued sprocket pattern | Fitment note |
|---|---|---|---|---|---|---|
| Honda | CG125 All Japan | 1977–1984 | 15T / 34T | 100 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. Not a standard-length or standard-ratio replacement |
| Honda | CG125 Brazil | 1985–1992 | 14T / 41T | 110 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. Different OE gearing and chain length |
| Honda | CG125 Brazil | 1993–1998 | 14T / 41T | 114 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. Different OE gearing and chain length |
| Honda | CG125 Brazil, French-market specification | 1987–1997 | 14T / 40T | 110 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. Market-specific OE gearing and chain length |
| Honda | CG125 E / CG125 / CG125 W | 1998–2001 | 15T / 36T | 112 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. 15/38 modified gearing separately documented with 114 links, not 116 |
| Honda | CG125 M1 | 2002–2005 | 14T / 43T | 116 | JTF259 / JTR269 | Modified gearing option only; confirm sprocket mounts and professionally size the chain to the motorcycle. Same catalog chain length; both standard sprocket tooth counts differ |
Mounting and Cross-Reference Guidance
The JT Sprockets catalogue lists JTF259 as the front sprocket pattern and JTR269 as the rear sprocket pattern for the older CG125 variants above. JT offers a 15-tooth version of JTF259 and a 38-tooth version of JTR269. These are shape-comparison references only: the supplied unbranded sprockets have not been independently measured or verified as direct JT equivalents. No genuine Honda OE number is claimed for this complete alternative-gearing kit.
What's Included
- 1 × 428H drive chain, listed as 116 links
- 1 × 15T front sprocket
- 1 × 38T rear sprocket
Important Fitment Information
This is not a blanket 1977–2005 direct-fit kit. Do not order solely by the CG125 name or model year. A commercially listed 15/38 modified-gearing set for 1998–2001 CG125 uses a 114-link 428 chain, whereas this set contains 116 links. Earlier and later CG125 variants have other factory chain lengths and ratios. The supplied chain may need resizing by a competent mechanic using the chain manufacturer's approved method; do not assume the supplied 116 links are the correct installed length.
Confirm the original front sprocket spline, retainer, rear sprocket bolt pattern and mounting, wheel/swingarm adjustment range, and required chain length before ordering. Some Brazilian CG125 Titan and 2006-on models use a different JTR218-style rear mount and must not be assumed compatible.
Any gearing change also changes the final-drive ratio compared with factory specification. A qualified technician should check the installed chain line, free play and sprocket clearances.
Condition
Brand new aftermarket replacement kit.
Delivery & Returns
- Free UK delivery with an estimated 2–3 working-day service
- 30-day returns subject to the item's original condition