Wholesale The Motorcycle Sprocket 520-23T Manufacturers, Supplier

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Wholesale The Motorcycle Sprocket 520-23T Manufacturers, Supplier

The Motorcycle Sprocket 520-23T is a heavy-duty drivetrain component engineered for 520-series chains, featuring 23 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.

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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 "428" and "42T" stand for on a motorcycle sprocket?

The "428" indicates compatibility with 428-standard roller chains, matching a pitch of 12.7mm. The "42T" indicates that the sprocket has 42 teeth, providing an optimal balance between low-end torque and high-end cruising speed.

What materials are used to manufacture this sprocket?

This sprocket is crafted from premium Heat-Treated High-Carbon Steel (1050) or Alloy Steel (42CrMo) to deliver exceptional durability and long-term performance under high stress.

What is the hardness rating of the sprocket teeth?

The teeth feature a surface hardness of HRC 55–60 due to specialized heat treatment, while the core maintains a hardness of HRC 30–35 to ensure the toughness needed to prevent snapping or cracking.

How long does the 428-42T sprocket typically last?

With regular cleaning and proper chain lubrication, the sprocket is designed to last between 15,000 and 25,000 kilometers, depending on the riding environment and chain condition.

Is this sprocket suitable for off-road riding?

Yes, it is highly suited for dual-sport and off-road bikes (such as 200–400cc models). The 42-teeth configuration enhances low-to-mid range torque, making it easier to handle hills, dirt trails, and rough terrain.

Does the sprocket come with anti-rust protection?

Yes, it is treated with anti-rust surface coatings such as Black Oxide, Zinc Plating, or Hard Chrome Coating to prevent corrosion and sustain severe weather conditions.