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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.
428H heavy-duty design boosts tensile strength, easily handling torque loads from 125–400cc engines without stretching or snapping.
Heat-treated (HRC 52–56) rollers, pins, and plates minimize abrasion, extending service life by 30% vs. standard 428 chains.
Zinc plating or black oxide coating prevents rust and oxidation, adapting to wet, dusty, or humid riding environments.
102-link length directly fits popular models (e.g., Honda CB300, Yamaha YBR250), enabling quick, tool-friendly replacement.
Fits 125–400cc cruisers, nakeds, and sport bikes (e.g., Kawasaki Ninja 300) as the primary drivetrain chain.
Used in 150–250cc off-road models (e.g., Suzuki DR-Z250) for reliable power transfer on rough terrain.
Compatible with 150–350cc ATVs/UTVs for work or recreational off-road use.
Ideal for DIY projects or replacement where 428H pitch and 102-link length are specified.
| 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) |
"428H" represents the heavy-duty (H) pitch standard of 12.7mm (0.5 inch), designed for enhanced tensile strength. "102L" indicates the length of the chain, which consists of 102 individual links.
This chain is optimized for mid-displacement engines ranging from 125cc to 400cc, offering the necessary torque endurance for street, dirt, and utility vehicles.
The chain is manufactured from heat-treated alloy steel (40CrMnMo) and is finished with zinc plating or a black oxide coating to provide superior rust and oxidation resistance.
For standard compatible models (such as the Honda CB300 and Yamaha YBR250), the 102-link length is pre-calibrated to match OEM specifications, eliminating the need for link cutting.
Under typical motorcycle use and with regular, proper lubrication, the chain offers a reliable service life of 15,000 to 25,000 kilometers.
The roller chain features a roller diameter of 8.51mm, a pin diameter of 5.08mm, and a link plate thickness of 2.0mm, all compliant with heavy-duty industry standards.
