China The 428H*136L motorcycle chain for NK400 Manufacturers, Manufacturer

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China The 428H*136L motorcycle chain for NK400 Manufacturers, Manufacturer

The 428H-136L motorcycle chain is a heavy-duty drivetrain core, engineered with the industry-standard 428H heavy-duty pitch and 136-link length. It delivers exceptional torque bearing, wear resistance, and direct fit for mid-displacement motorcycles.

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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

1High Torque Endurance

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

2Long-Lasting Wear Resistance

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

3All-Condition Protection

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

4Hassle-Free Installation

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

Applications

1Mid-Displacement Street Bikes

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

2Dual-Sport & Dirt Bikes

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

3Light Utility Vehicles

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

4Custom 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

1. What does the "428H" and "102L" specification mean?

"428H" refers to the heavy-duty version of the standard 428 pitch (12.7mm or 0.5 inch) with enhanced tensile strength. "102L" indicates that the chain has 102 individual links, making it a direct fit for many mid-displacement motorcycles.

2. Which motorcycle models is this roller chain compatible with?

It is compatible with 125cc to 400cc displacement motorcycles, off-road dirt bikes, ATVs, and cruisers that utilize 428H-spec sprockets with 13 to 45 teeth.

3. How does the heavy-duty (H) design compare to standard chains?

The heavy-duty (H) design features heat-treated alloy steel components and thicker plates (2.0mm), providing significantly higher tensile strength to handle high torque loads without stretching or breaking.

4. Does the chain require modification before installation?

For standard compatible models requiring a 102-link configuration, the chain fits directly without any need for link cutting or modification.

5. What is the expected service life of this chain?

With regular cleaning and proper lubrication, the typical service life ranges between 15,000 and 25,000 km, depending on riding conditions and environmental factors.