Lifan 125 420 15T Front Sprocket – 20mm Countershaft
Brand-new unbranded 420 pitch, 15-tooth front sprocket for selected Lifan 125cc horizontal engines using the larger 20 mm countershaft.
Product Details
- Position: Front / countershaft sprocket
- Chain pitch: 420
- Tooth count: 15T
- Countershaft family: Large 20 mm type
- Spline count: 6
- Condition: Brand new
- Type: Unbranded aftermarket replacement
- Quantity: 1 sprocket
Verified Fitment Family
| Make / Engine | Application | Notes |
|---|---|---|
| Lifan | 125cc horizontal engine – 20 mm countershaft type | TBolt and specialist suppliers document a large 20 mm shaft on selected Lifan 125 engines |
Important Fitment Information
Not every Lifan 125 uses the same countershaft size. Use this listing only where the engine has the larger 20 mm countershaft spline pattern.
A 15T front sprocket changes final-drive gearing if replacing a different tooth count. Confirm chain length/adjustment range after installation.
Do not order by engine capacity alone. Chinese horizontal engines use more than one countershaft spline size. Many YX/Piranha engines and several SSR/Pitster Pro models use the smaller 17 mm pattern, which is not the same as this 20 mm sprocket.
What's Included
One 420 pitch, 15-tooth front sprocket. Retainer plate, bolts and other fitting hardware are not stated as included.
Installation
Confirm chain pitch, shaft spline size, chain alignment and sprocket-retainer arrangement before fitting. Inspect the drive chain and rear sprocket for wear and replace worn drivetrain components as required.