RK Chain Drive Chain Components

RK Chain: Decades of Drive Chain Innovation

RK Chain — formally known as RK Takasago — has been one of the powersports industry's most trusted names in motorcycle drivetrain components. Drive chains are the heart of RK's lineup, and the brand has been refining them since 1951, building a global reputation on durability, precision engineering, and race-proven performance.

The brand's defining moment came during a grueling 24-hour endurance race in the late 1970s. While competing teams routinely swapped out conventional chains multiple times throughout the event, a team running RK's newly developed sealed-ring chain went on to win using just a single chain for the entire race. That result didn't just win a trophy — it established a new benchmark for what a motorcycle drive chain could be.

A Chain for Every Rider and Every Ride

Today, RK Chain offers a broad spectrum of chains engineered for everything from daily commuting to professional road racing. The product range spans several distinct series — including O-ring, X-ring, and advanced XW-ring sealed chains — each designed around a specific balance of weight, lubrication, friction reduction, and longevity. RK drive chains are pre-stressed and pre-stretched at the factory, meaning they deliver reliable performance right out of the box with minimal break-in adjustment needed.

At the performance end of the spectrum, RK's ZXW and XRE series feature XW-ring seals that create dual lubrication pools, dramatically reducing friction compared to conventional O-ring designs while also shielding the inner rollers and bushings from dirt and debris. For maximum-output machines and race applications, the MAX-X series adds RX-ring seals and four-point riveting for exceptional tensile strength even under extreme stress.

Beyond the Chain: Sprockets, Links & Tools

A chain is only as good as the components it runs with, which is why RK Chain's ecosystem extends well beyond chains themselves. Sprockets are manufactured to exacting quality standards and are designed to deliver full service life when matched with genuine RK chains. For riders building a complete drivetrain solution, RK also offers chain and sprocket kits — pairing RK chains with trusted brands like Driven and Vortex for a cohesive, performance-matched upgrade.

When it comes to installation and maintenance, RK supplies drive chain links — including rivet-style and clip-style connecting links for a broad range of chain pitches — as well as dedicated chain shortener and breaker tools that allow riders and technicians to cut chains cleanly and efficiently without damaging rollers or plates.

Race-Proven, Street-Trusted

RK chains have supported championship-winning teams across MotoGP, Motocross, and endurance racing at the highest levels of the sport. But the same engineering that wins on the track translates directly to reliability on the street, trail, or track day. Whether you ride a lightweight 125cc off-road bike or a high-displacement sport tourer, RK Chain offers a solution built to the same exacting Japanese manufacturing standards that have made the brand synonymous with quality for over seven decades.