Vendeur: GOOFIT
420-12T Front Sprocket 17mm for 50cc-150cc Pit Dirt Bike ATV
Détails du produit
Product Overview
This 420-12T front sprocket is designed as a replacement drive sprocket for many 50cc, 70cc, 90cc, 110cc, 125cc, 140cc, and 150cc pit bikes, dirt bikes, motorcycles, and ATVs using a compatible 420 chain setup.
The sprocket helps transfer engine power from the front drive shaft to the chain, supporting smooth acceleration and stable drivetrain performance. A worn or damaged front sprocket may cause chain slipping, abnormal noise, poor power transfer, or faster chain wear.
Made from heat-treated steel, this sprocket is built for durability, wear resistance, and long service life. The inner diameter is 17mm / 0.67", and the mounting hole distance is 30mm / 1.18". Please compare the chain size, tooth count, shaft size, hole distance, and product photos with your original sprocket before ordering.
Product Compatibility
| Vehicle Type | Compatible Application |
|---|---|
| Pit Bike | 50cc / 70cc / 90cc / 110cc / 125cc / 140cc / 150cc |
| Dirt Bike | Compatible models using 420 chain and 17mm front sprocket shaft |
| Motorcycle | Small engine models when sprocket size matches |
| ATV / Quad | Compatible models using 420-12T front sprocket setup |
⚠️ This is a size-specific front sprocket. Please confirm your original sprocket uses a 420 chain, 12-tooth design, 17mm inner diameter, and matching mounting hole distance before purchase.
Specifications
| Item | Details |
| Product Type | Front Drive Sprocket |
| Chain Size | 420 |
| Tooth Count | 12T |
| Inner Diameter | 17mm / 0.67" |
| Mounting Hole Distance | 30mm / 1.18" |
| Material | Heat-Treated Steel |
| Compatible Engine Sizes | 50cc / 70cc / 90cc / 110cc / 125cc / 140cc / 150cc |
| Application | Pit Bike / Dirt Bike / Motorcycle / ATV |
| Package Includes | 1 × Front Sprocket, Holder and Bolts |
| Condition | 100% Brand New |
Key Features
- 420-12T front sprocket for 50cc-150cc pit bikes, dirt bikes, motorcycles, and ATVs
- 17mm inner diameter for compatible front drive shaft applications
- 30mm mounting hole distance for size matching
- Heat-treated steel construction helps improve wear resistance and durability
- Includes sprocket holder and bolts for convenient replacement installation
