China The Motorcycle Sprocket 520-15T Manufacturers, Manufacturer

1 / 1

China The Motorcycle Sprocket 520-15T Manufacturers, Manufacturer

The Motorcycle Sprocket 520-15T is a heavy-duty drivetrain component engineered for 520-series chains, featuring 15 teeth for optimized torque transfer and compatibility with mid-displacement motorcycles. It delivers reliable power transmission and long-lasting performance for on/off-road use.

Send Inquiry

Product Description

Product Overview

The Motorcycle Sprocket 428-42T is a core rear (or countershaft) sprocket designed to pair with 428-standard roller chains—widely used in mid-displacement motorcycles. Its "428" designation aligns with the industry 428 chain pitch (12.7mm), ensuring seamless meshing with 428 chains (e.g., 428H, 428X). The "42T" denotes 42 teeth, a popular specification that balances torque output and top speed: more teeth enhance low-end pulling power (critical for off-roading or heavy loads) without excessive speed loss.

Key Advantages

1. Optimized Torque & Speed Balance: 42 teeth design boosts low-to-mid range torque (ideal for climbing or accelerating with loads) while maintaining usable top speed for highway riding.
2. Superior Wear Resistance: Heat-treated (HRC 55–60) steel construction hardens tooth surfaces, reducing abrasion from chain contact and extending service life by 35% vs. standard sprockets.
3. Perfect 428 Chain Compatibility: Precision-machined tooth profile matches 428-series chains (12.7mm pitch), eliminating chain slip, noise, or premature wear.
4. Impact-Resistant Build: Alloy steel core absorbs shock from rough terrain (e.g., dirt roads, potholes) without chipping or bending, ensuring durability in harsh conditions.

Applications

1. Mid-Displacement Street Motorcycles: Fits 125–400cc sport bikes, cruisers, and naked bikes (e.g., Honda CB300R, Yamaha MT-03) as a rear sprocket for balanced performance.
2. Dual-Sport & Off-Road Bikes: Used in 200–400cc dual-sports (e.g., Suzuki DR650S, Kawasaki KLX300) to enhance off-road torque for climbing and trail riding.
3. Light Utility Motorcycles: Compatible with 150–300cc cargo bikes or delivery scooters (e.g., TVS XL100 Heavy Duty) to handle load-bearing demands.
4. Custom Drivetrain Upgrades: Ideal for riders modifying mid-displacement bikes to prioritize low-end power (e.g., off-road conversions, urban commuting tweaks).

Product Specification

Specification Item	Details
Sprocket Type	Motorcycle Rear/Countershaft Sprocket (428-Spec)
Chain Compatibility	428-Series Roller Chains (Pitch: 12.7mm / 0.5 inch)
Tooth Count (T)	42 Teeth
Construction Material	Heat-Treated High-Carbon Steel (1050) or Alloy Steel (42CrMo)
Surface Treatment	Black Oxide / Zinc Plating (anti-rust) or Hard Chrome Coating
Tooth Hardness	HRC 55–60 (Surface), HRC 30–35 (Core, for toughness)
Mounting Hole Pattern	Universal fit (varies by model; typically 4–6 bolt holes, 50–70mm PCD)
Outer Diameter	~170mm (calculated as: Pitch × (Tooth Count / π) + Pitch)
Thickness	6–8mm (standard for mid-displacement motorcycles)
Compatible Engine Range	125–400cc 4-Stroke Gasoline Engines
Typical Service Life	15,000–25,000 km (paired with regular chain maintenance)

Frequently Asked Questions

What does the "428-42T" designation mean for this motorcycle sprocket?

The "428" designation indicates that the sprocket is designed to match the industry standard 428 chain pitch (12.7mm). The "42T" denotes that it has 42 teeth, providing a popular balance that enhances low-end torque output without sacrificing excessive top speed.

What displacements and types of motorcycles is this sprocket compatible with?

It is designed for mid-displacement motorcycles ranging from 125cc to 400cc. This includes street bikes, dual-sport and off-road bikes, and light utility cargo motorcycles.

What material is used to construct this sprocket, and how durable is it?

The sprocket is made from heat-treated high-carbon steel (1050) or alloy steel (42CrMo). It achieves a surface tooth hardness of HRC 55–60, which improves wear resistance and extends service life by up to 35% compared to standard sprockets.

What is the typical service life of the 428-42T sprocket?

Under normal riding conditions and when paired with regular chain cleaning and lubrication, this sprocket typically has a service life between 15,000 and 25,000 km.

Will this sprocket fit my specific motorcycle hub mounting pattern?

It features a universal fit pattern that typically supports 4 to 6 bolt holes with a 50–70mm Pitch Circle Diameter (PCD). We recommend verifying your specific motorcycle model's mounting layout before installation.