China The 428*126L motorcycle chain for EN125 Manufacturers, Suppliers

The 428*126L motorcycle chain is a heavy-duty drivetrain core, engineered with the industry-standard 428 heavy-duty pitch and 126-link length. It delivers exceptional torque bearing, wear resistance, and direct fit for mid-displacement motorcycles.

Product Description

Product Overview

The 428H*102L is a high-performance roller chain tailored for motorcycle drivetrains, where reliable power transfer between engine and wheels is critical. Its "428H" code refers to the universal heavy-duty (H) 428-series pitch (12.7mm/0.5 inch)—optimized for enhanced tensile strength to handle high torque from mid-displacement engines. The "102L" denotes a 102-link length, calibrated to match OEM specs of 125–400cc motorcycles, eliminating the need for link cutting during installation.

Key Advantages

1. High Torque Endurance

428H heavy-duty design boosts tensile strength, easily handling torque loads from 125–400cc engines without stretching or snapping.

2. Long-Lasting Wear Resistance

Heat-treated (HRC 52–56) rollers, pins, and plates minimize abrasion, extending service life by 30% vs. standard 428 chains.

3. All-Condition Protection

Zinc plating or black oxide coating prevents rust and oxidation, adapting to wet, dusty, or humid riding environments.

4. Hassle-Free Installation

102-link length directly fits popular models (e.g., Honda CB300, Yamaha YBR250), enabling quick, tool-friendly replacement.

Applications

1. Mid-Displacement Street Bikes

Fits 125–400cc cruisers, nakeds, and sport bikes (e.g., Kawasaki Ninja 300) as the primary drivetrain chain.

2. Dual-Sport & Dirt Bikes

Used in 150–250cc off-road models (e.g., Suzuki DR-Z250) for reliable power transfer on rough terrain.

3. Light Utility Vehicles

Compatible with 150–350cc ATVs/UTVs for work or recreational off-road use.

4. Custom Motorcycle Builds

Ideal for DIY projects or replacement where 428H pitch and 102-link length are specified.

Product Specification

Specification Item Details
Chain Type 428H Heavy-Duty Motorcycle Drivetrain Roller Chain
Pitch (P) 12.7mm (0.5 inch) – Industry Standard 428H Heavy-Duty Pitch
Length (L) 102 Links (Total Length: ~1295.4mm, calculated as 102 × 12.7mm)
Construction Material Heat-Treated Alloy Steel (40CrMnMo)
Surface Treatment Zinc plating or black oxide coating (anti-rust)
Minimum Tensile Strength 3,800 N (854 lbs)
Operating Temperature Range -25°C to 160°C (-13°F to 320°F)
Link Plate Thickness 2.0mm
Roller Diameter 8.51mm
Pin Diameter 5.08mm
Compatibility 428H-Spec Sprockets (13–45 teeth), 125–400cc 4-Stroke Engines
Typical Service Life 15,000–25,000 km (motorcycle use, based on regular lubrication)

Frequently Asked Questions

Q What does the "428H" and "102L" specification stand for?

"428H" refers to the heavy-duty (H) universal 428-series pitch of 12.7mm (0.5 inch), designed for enhanced tensile strength to support high-torque loads. "102L" indicates a chain length of 102 links, pre-calibrated for standard motorcycle installations.

Q Which motorcycle engine displacements is this chain compatible with?

This chain is engineered to match OEM specifications for mid-displacement motorcycles between 125cc and 400cc, including street bikes, dual-sports, off-road dirt bikes, and light ATVs/UTVs.

Q What materials are used to construct the 428H*102L chain?

The chain is manufactured from heat-treated alloy steel (40CrMnMo) with parts hardened to HRC 52–56. It is treated with zinc plating or a black oxide coating for superior rust protection and weathering resistance.

Q What is the expected service life and tensile strength of this chain?

It features a minimum tensile strength of 3,800 N (854 lbs) and offers an average service life of 15,000 to 25,000 km, depending on regular maintenance and proper lubrication.

Q Does the chain require cutting during installation?

No. The 102-link setup is designed as a direct-fit replacement for popular motorcycle models like the Honda CB300 and Yamaha YBR250, allowing for tool-friendly installation without the need to cut links.

Q What are the operating temperature limits for this roller chain?

The chain can operate safely within a broad temperature range of -25°C to 160°C (-13°F to 320°F), making it highly reliable in both cold and high-heat riding environments.

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