428-15T Front Engine Sprocket (20mm) for Motorcycle, ATV, & Dirt Bike

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.