428DX Motocross Chain — Reinforced Chain for 150cc Off-Road Motorcycles
428DX Motocross Chain Product data information
| Model No | Pitch (mm) P | Roller Link Width (Min.) (mm) W | Roller Diameter (Max.) (mm) D | Pin Link Plate Thickness (mm) T1 | Inner Link Plate Thickness (mm) T2 | Inner Link Plate Height (mm) H | Pin Diameter (mm) d | Overall Width Riv. (mm) L | Overall Width Con. (mm) G | Minimum Tensile Strength (kgf) | Average Tensile Strength (kgf) | Displacement Application (Max.) (cc) |
| 428DX | 12.7 | 7.85 | 8.51 | 2 | 2 | 11.9 | 4.51 | 18.8 | 20 | 2500 | 3000 | 150 |
The 428DX Motocross Chain is built for riders who need stronger impact resistance and higher tensile strength than standard 428 chains. Designed for 125cc–150cc off-road engines, this model delivers dependable performance on aggressive terrain and high-load conditions.
What Makes the 428DX Motocross Chain Different?
With an average tensile strength of 2500 kgf, upgraded alloy steel plates, and reinforced heat-treated pins, the 428DX offers outstanding reliability for mid-power dirt bikes. It includes a thin O-ring seal that triples service life by keeping lubrication in and dirt out.
Available in multiple colors, this model is suitable for trail bikes, enduro riding, and entry-level competition motorcycles.
428DX Motocross Chain Key Features & Advantages
High Strength for 150cc Engines
- Enhanced fatigue resistance
- Chromated high-hardness axle pins
- Thickened inner/outer plates
The chain can withstand repeated jumps, clutch kicks, and sudden torque spikes typical in motocross use.
Triple-Barrier Seal for Extended Lifespan
The sealing system includes:
- High-grade fluoropolymer O-ring
- Three-layer grease retention
- Anti-chip surface geometry
This ensures a smooth ride even after large amounts of sand, mud, or water exposure.
Upgraded Endurance Through Advanced Heat Treatment
Our proprietary heat treatment process provides:
- Hard outer layer to resist wear
- Softer inner core to absorb impact
- Balanced strength and flexibility
This improves chain life and maintains stable operation during high-speed vibration.
428DX Motocross Chain Applications
Best suited for:
- 125cc–150cc motocross motorcycles
- Enduro and trail riding
- Youth racing bikes
Dual-sport models within chain pitch compatibility
428DX Motocross Chain Technical Specifications
| Specification | Value |
|---|---|
| Model | 428DX Motocross Chain |
| Max Displacement | 150cc |
| Average Tensile Strength | 2500 kgf |
| Seal Type | Thin O-ring (triple barrier) |
| Color Options | Red / Blue / Gold / Original |
| Material | Upgraded alloy steel |
| Use | Off-road motocross |
Built for Harsh Off-Road Conditions
When the trail gets muddy, sandy, or waterlogged, the 428DX remains stable thanks to its advanced sealing design and tight internal tolerances. Riders can maintain speed without worrying about premature chain wear or lubrication loss.
428DX Motocross Chain Factory-Direct Supply
We are a professional chain manufacturer in China offering:
- OEM & ODM service
- High-volume stable production
- B2B competitive pricing
- Custom lengths & packaging
Frequently Asked Question
The 428DX is specifically designed for 125cc–150cc off-road motorcycles, providing enhanced impact resistance and reliable performance on aggressive terrain.
The 428DX features a triple-barrier O-ring sealing system and upgraded alloy steel plates, which significantly extend its service life by keeping lubrication in and dirt out.
The chain is equipped with a high-grade fluoropolymer O-ring seal, which ensures smooth operation even in muddy, sandy, or waterlogged conditions, while also protecting against dirt and debris.
Yes, the 428DX is built to withstand the repeated jumps, sudden torque spikes, and clutch kicks typical in motocross, thanks to its enhanced fatigue resistance and reinforced pins.
Absolutely! We offer custom lengths, colors, and packaging for B2B customers, ensuring the chain meets your specific needs for OEM or wholesale applications.
Our proprietary heat treatment process provides a hard outer layer for wear resistance and a flexible inner core to absorb impact, ensuring longer chain life and stable performance under high-speed vibrations.
