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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 a heavy-duty 428-series pitch of 12.7mm (0.5 inch) optimized for high torque endurance. "102L" indicates the chain has exactly 102 links, pre-calibrated to match OEM specs of standard 125–400cc motorcycles.
For popular compatible models like the Honda CB300 or Yamaha YBR250, the 102-link length is designed to directly fit standard specifications, eliminating the need for link cutting or modifications during installation.
The heavy-duty design boosts the chain's overall tensile strength to a minimum of 3,800 N (854 lbs). This allows the chain to efficiently handle demanding torque loads from mid-displacement engines without stretching or snapping.
The chain is constructed using heat-treated alloy steel (40CrMnMo) with a hardness rating of HRC 52–56 for the rollers, pins, and plates. It also features zinc plating or black oxide coating for excellent anti-rust and anti-oxidation protection.
Under standard motorcycle usage conditions and with regular lubrication, you can expect a typical service life ranging between 15,000 to 25,000 km.
Yes. Thanks to its anti-rust surface treatments and heat-treated alloy steel construction, it operates reliably in temperatures ranging from -25°C to 160°C (-13°F to 320°F), making it suitable for wet, dusty, and humid environments.
