RCB 428 Black & Gold HO-Ring Chain & E-Series Sprocket Kit – Yamaha R15 V3 / V4 / M

Restore ultra-smooth power delivery, maximize drivetrain efficiency, and significantly reduce your maintenance intervals with the premium RCB 428 Performance Drive Kit.

This comprehensive drivetrain overhaul package pairs the long-distance sealing power of the RCB Integrated HO-Ring Black & Gold Edition Chain (132L) with the precision-hardened, wear-resistant RCB E-Series 14T Front and 48T Rear Steel Sprockets. Engineered to match the factory gearing configuration of the Yamaha R15 V3, V4, and R15M, this setup provides high-tensile reliability for both aggressive sport riding and demanding daily commutes.

Key Features

1. RCB Integrated HO-Ring Chain (428 / 132L – Black & Gold Edition)

• Advanced HO-Ring Sealing Barrier: Built with premium, high-integrity HO-ring rubber seals strategically seated between the inner and outer links. This system locks in specialized factory-injected synthetic lubricant while sealing out abrasive road grit, dust, and rainwater.

• Corrosion Protection Engineering: Features a highly resilient outer surface treatment designed to resist oxidation and rust, ensuring structural durability even when subjected to harsh monsoon riding conditions.

• Stunning Black & Gold Styling: Designed with an eye-catching contrast layout featuring deep black inner links paired with rich gold outer plates. This premium finish elevates the look of your swingarm area with a sharp racing aesthetic.

• Pre-Stretched Design: Factory pre-loaded and stretched to minimize initial chain elongation, reducing the need for frequent chain slack adjustments during the initial break-in period.

2. RCB E-Series Front & Rear Steel Sprockets (14T / 48T)

• High-Carbon SCM420 & S45C Steel: The 14T countershaft sprocket is precision-cut from case-hardened SCM420 chromoly steel to handle intense engine shearing forces. The 48T rear sprocket is stamped from rugged S45C high-carbon steel for maximum structural wear life.

• Induction-Hardened Tooth Profiles: Features computer-guided induction hardening across the sprocket teeth to maintain perfect pitch alignment, minimize friction drag, and eliminate premature tooth hooking.

• Self-Cleaning Mud Grooves: Engineered with dedicated clearing paths at the base of the teeth to continuously shed fling-off chain lube, road grime, and debris away from the roller contact area.

Technical Specifications

Why Replace Your Full Drivetrain as a Kit?

1. Prevents Premature Component Wear: Running a brand-new chain over worn, hooked sprockets (or putting new sprockets on a stretched chain) forces the fresh components to deform prematurely. Installing all three parts simultaneously resets the system wear architecture to zero.

2. HO-Ring Efficiency vs. Non-O-Ring: Standard non-sealed chains lose their internal lubrication within a few hundred kilometers of hard riding, causing immense friction, heat buildup, and power loss. The HO-ring design retains its core elasticity and lubrication up to 2x longer under high-RPM loads.

3. Optimal Wheel-Power Transfer: This direct 14T-48T combination perfectly maintains your bike’s factory engineering ratios, transferring engine torque directly to the rear tire with minimal mechanical drag or chain-slap energy loss.

Installation Note: This universal 132-link chain provides ample length to accommodate varying swingarm adjustments. The chain must be cut down to your specific bike’s stock link count (typically 126 to 128 links depending on model year and rear tire size) using a professional chain breaker tool during installation. Always use a fresh master link, align your swingarm measurement markers symmetrically, and set your vertical chain slack to 25–30mm with the rider’s weight on the machine.