Yamaha YBR125 428 Front & Rear Sprocket Set – 14T / 45T
Two-piece replacement sprocket set for compatible Yamaha YBR125 motorcycles using a 428-pitch final drive with a 14-tooth front sprocket and 45-tooth rear sprocket.
Components Supplied
- 1 × 14T front drive / gearbox sprocket
- 1 × 45T rear driven / wheel sprocket
- Chain pitch: 428
- Chain is not included
- SKU: 01410-DNT
Yamaha OE Part Number Cross-References
This product is supplied as an unbranded aftermarket sprocket set. The Yamaha numbers below are provided as OE identification references and are not claimed to be the manufacturer MPN of the aftermarket parts supplied.
- 93822-14043-00 / 93822-14043 – Yamaha 14T drive sprocket
- 5N0-17461-40-00 / 5N0-17461-41-00 – earlier Yamaha references associated with the 14T drive sprocket family
- 5VL-F5445-01-00 / 5VL-F5445-01 – Yamaha 45T driven rear sprocket
- 5VL-F5445-00-00 – earlier rear-sprocket reference
- 5VL-W001A-00 – Yamaha complete YBR125 chain-and-sprocket kit reference; the genuine kit also includes a chain, whereas this listing is for the two sprockets only
Aftermarket Manufacturer Cross-References
- JT Sprockets JTF1263.14 – 14T front sprocket reference used on YBR125 2005–2006 applications
- JT Sprockets JTR838.45 – 45T rear sprocket reference for YBR125 applications
Fitment Information
JT Sprockets lists the Yamaha YBR125 2005–2006 with standard 14T front / 45T rear / 428 gearing. Yamaha parts catalogues also show the 93822-14043 front sprocket and 5VL-F5445-01 rear sprocket on early YBR125 variants.
Later YBR125 versions can still use 14T / 45T / 428 gearing, but Yamaha and aftermarket catalogues show a different front-sprocket/retainer pattern on some later-market bikes. Compare the front sprocket, spline and retaining-plate arrangement before ordering.
Important: YBR125 Custom
The YBR125 Custom 2008–2014 uses 428 pitch and a 14T front sprocket, but JT lists its standard rear sprocket as 43T. A 45T rear changes the final-drive ratio, so this set should not be described as the standard YBR125 Custom replacement unless the buyer specifically wants that gearing change and confirms the front sprocket fitment.
When to Replace Sprockets
Replace sprockets when the teeth become hooked, pointed, unevenly worn or damaged. For best drivetrain life, inspect the chain at the same time. A heavily worn chain can quickly damage new sprockets, while badly worn sprockets can accelerate wear on a replacement chain.
Before Ordering
- Confirm your existing chain is 428 pitch.
- Count the teeth on the sprockets currently fitted: 14T front and 45T rear.
- Compare the front-sprocket spline, retaining-plate bolt spacing and thickness with your original part.
- Compare the rear-sprocket centre bore and four mounting-hole pattern with the existing sprocket.
- Check the Yamaha OE numbers where available, especially on imported or non-UK-market YBR125 models.
Delivery & Returns
- Free UK delivery with an estimated 2–3 working-day service
- 30-day returns, subject to the item being returned in its original condition