1
/
of
3
GOOFIT
420-17T Front Engine Sprocket (20mm) for 50cc–150cc Dirt Pit Bike & ATV
420-17T Front Engine Sprocket (20mm) for 50cc–150cc Dirt Pit Bike & ATV
Regular price
$12.99
Regular price
Sale price
$12.99
Shipping calculated at checkout.
Quantity
Couldn't load pickup availability
Product Overview
Take your vehicle's speed and efficiency to the next level with the 420-17T Extreme Gearing Front Sprocket. Engineered specifically for engines with a 20mm output shaft, this 17-tooth gear is the premier choice for riders wanting to maximize top-end velocity and reduce engine strain during high-speed operation. Precision-machined from high-strength alloy steel, it provides a rock-solid connection that minimizes noise and vibration, delivering a smoother, more refined riding experience on any terrain.
Product Compatibility
| Component Type | Specification |
| Engine Displacement | 50cc, 70cc, 110cc, 125cc, 150cc |
| Vehicle Types | Dirt Pit Bikes, ATVs, 4-Wheelers, Motorcycles |
| Chain Pitch | 420 |
| Shaft Fitment | 20mm Countershaft |
| Common Engines | Lifan, Loncin, YX, Jialing, Zongshen |
| Compatible Brands | SSR, SDG, Baja, TaoTao, Coolster |
Specifications
| Feature | Details |
| Tooth Count | 17T (17 Teeth) |
| Inner Diameter | 20mm (0.78") |
| Chain Size | 420 |
| Material | High-Strength Alloy Steel |
| Finish | Polished, Anti-Corrosive Coating |
| Machining | High-Precision Internal & External Tooth Cutting |
Key Features
- Maximum Speed Optimization: The 17-tooth design is the ultimate "high-speed" configuration for 420-chain systems, significantly increasing top speed while allowing the engine to run at lower, more comfortable RPMs.
- Precision Polished Teeth: Gears are precision-machined and polished to ensure a perfect, seamless connection with the chain, effectively eliminating slippage and reducing mechanical drag.
- High-Strength Alloy Steel: Forged from premium alloy steel, this sprocket is built to withstand extreme torque and abrasive off-road conditions without compromising its structural integrity.
- Whisper-Quiet Operation: The precise internal tooth geometry ensures tighter meshing between the gear and chain, which drastically reduces drivetrain noise and vibration for a better handling feel.
- Exceptional Wear Resistance: Engineered with advanced corrosion and wear resistance, this sprocket is designed to work stably under extreme loads, extending the life of your entire drive system.
Share

FAQs
Got a question? We are here to answer