Recommended Additional Upgrades
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S1 FL 30th Anniversary Special Edition
Get the Combo set for the ultimate brake system upgrade.
The RCB 428HS Series Chain (132L) in Gold is a high-performance drive chain engineered for riders who demand both extreme strength and a premium racing aesthetic. The “HS” designation stands for Hyper-Strong, representing RCB’s reinforced series that features thicker plates and higher tensile strength compared to standard 428 or 428H chains.
This chain is a favorite for the Yamaha R15, MT-15, and Honda CBR150R community, especially for bikes that have been tuned for higher power output.
Key Features
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Hyper-Strong (HS) Construction: The side plates are specially thickened and heat-treated to resist stretching and snapping. This makes it ideal for high-RPM engines where the chain must endure constant rapid acceleration and engine braking.
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Solid Bushing & Roller: Unlike cheaper chains that use “curled” bushings, the HS series utilizes solid bushings. This significantly reduces internal friction and prevents the “kinking” of links over time.
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Premium Gold Coating: The entire chain is finished in a high-quality gold plating. This isn’t just for looks; the coating provides an extra layer of protection against rust and oxidation, extending the chain’s life in humid or rainy conditions.
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132L Extended Length: The 132-link count ensures universal fitment. Whether you are running a stock swingarm or a modified setup with a larger rear sprocket (like a 48T or 50T), this chain provides ample length.
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Enhanced Power Transfer: Because the HS series is designed with tighter tolerances and higher rigidity, more energy is transferred from the engine to the rear wheel with less “slop,” resulting in a crisper throttle feel.
Technical Specifications
| Feature | RCB 428HS Series Chain Details |
| Chain Pitch | 428HS (Hyper-Strong / Reinforced) |
| Length | 132 Links (Universal) |
| Seal Type | Non-O-Ring (Low Friction / Racing Grade) |
| Color | Full Gold (Anodized/Coated) |
| Compatibility | R15 V3/V4, MT-15, GSX-R150, CBR150R, Gixxer |
Why Choose the 428HS Gold Series?
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Low Friction Performance: As a non-O-ring chain, the 428HS has significantly less mechanical drag than sealed chains. This makes it the preferred choice for racers and performance enthusiasts who want the maximum possible top speed.
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Unmatched Style: The brilliant gold finish is a classic “Racing Boy” signature, making the drivetrain a centerpiece of the bike’s visual design.
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Durability for Modified Engines: If you are running performance upgrades like a UMA Racing Exhaust or ECU tuning, the HS series is built to handle the increased stresses that would typically stretch a standard OEM chain.
Installation & Maintenance Tip
Since this is a non-sealed chain, regular maintenance is vital. To keep the 428HS performing at its peak, you should clean and lubricate it every 300km to 500km. Because it lacks internal rubber seals, you have the flexibility to use a wider range of cleaners, but a high-quality “Sticky” chain lube is recommended to prevent the gold coating from being abraded by road grit.
