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428-15T Front Engine Sprocket (20mm) for Motorcycle, ATV, & Dirt Bike
428-15T Front Engine Sprocket (20mm) for Motorcycle, ATV, & Dirt Bike
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Product Overview
The 428-15T Performance Front Sprocket is the ultimate upgrade for riders seeking a higher top speed and a more refined power delivery. Specifically designed for engines with a 20mm output shaft, this 15-tooth sprocket is engineered for the heavy-duty 428-series chain. By "gearing up," you allow your engine to maintain cruising speeds at lower RPMs, which significantly reduces vibration and engine wear. Crafted with high-precision technology and hot-treated steel, it is built to handle the torque of 125cc to 250cc engines.
Product Compatibility
| Component Type | Specification |
| Vehicle Types | Dirt Pit Bikes, ATVs, Quads, Off-Road Motorcycles |
| Engine Fitment | Engines with 20mm Countershafts |
| Chain Pitch | 428 (Heavy Duty) |
| Common Brands | SSR, TaoTao, Apollo, Lifan, YX, Zongshen |
| Mounting Style | 2-Bolt Pattern (34mm Spacing) |
Specifications
| Feature | Details |
| Tooth Count | 15T (15 Teeth) |
| Inner Diameter | 20mm (0.78") |
| Mounting Hole Distance | 34mm (1.34") center-to-center |
| Chain Style | 428 Style |
| Material | Hot-Treated High-Strength Steel |
| Package Includes | 1 x Sprocket, 1 x Locking Plate, 2 x Mounting Bolts |
Key Features
- Higher Cruising Speed: The 15-tooth design increases your gear ratio, providing a boost in top-end velocity and making it ideal for open trails and road-legal dual-sport bikes.
- Precision Processing Technology: Manufactured to ensure perfect dimensional accuracy, this sprocket provides a seamless mesh with the chain, resulting in a more silent transmission and smoother power delivery.
- Hot-Treated Steel Durability: The specialized heat treatment process hardens the steel to extreme levels, protecting the teeth from the abrasive wear of mud and high-torque stress.
- Direct "No Tool" Installation: This kit comes with complete accessories, including the retainer plate and bolts. It is a direct bolt-on replacement that requires no specialized tools or modifications.
- Stable Power Transfer: Specifically optimized for the 428 chain, the wider profile of this sprocket offers better lateral stability and reduced chain slap during aggressive off-road maneuvers.
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Fitment FAQ
Will this part fit my specific model and year?
This replacement part is intended for Motorcycle, ATV, & Dirt Bike. It is best matched to original part number(s) 428-15T. Key physical/spec details from the product data include 2-Bolt Pattern (34mm Spacing), Tooth Count: 15T (15 Teeth), 15T (15 Teeth). Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 428-15T before purchase. For this replacement part, also compare the OEM number, dimensions, connector or mounting style, engine/model year, and product photos.
What models or situations does this part not fit?
Do not order this replacement part for machines outside the listed compatibility, or for units with different OEM numbers, dimensions, mounting points, connectors, or year-specific configurations. If your original part number does not cross-reference with 428-15T, treat the fitment as unconfirmed. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, dimensions, connector or mounting style, engine/model year, and product photos. Confirm OEM/cross-reference number(s): 428-15T. Recheck listed specs such as 2-Bolt Pattern (34mm Spacing), Tooth Count: 15T (15 Teeth), 15T (15 Teeth). If any connector, mounting point, size, or year detail is different, confirm fitment before installation.