KMC: Innovating Bicycle Drivetrains for Performance and Sustainability

The key to bicycle performance lies heavily in the drivetrain, with the chain serving as a core component that connects all parts regarding power. With over 40 years of expertise in chain manufacturing, KMC is a globally respected leader in the bicycle industry. Leveraging deep technical knowledge and mastery of chain design, KMC have developed advanced R&D capabilities and innovative manufacturing technologies.

With extensive expertise, KMC has introduced their new slogan “KMC DRIVETRAIN EX- PERT” along with the LINK DESIGN concept, ensuring the highest level of compatibility between KMC chains, chainrings, and cassettes. This results in a more efficient, durable, and smoother drivetrain system, elevating the riding experience to new levels.

Three Core Technologies of the LINK DESIGN Drivetrain System

X-Bridge: The special chamfering and widened internal bridge design of KMC chains perfectly complement KMC chainrings and cassettes. This significantly enhances shifting speed and stability, achieving an even more optimal gear-changing efficiency.

X-Link: The thick-thin tooth profile of KMC chainrings seamlessly integrates with KMC chains’ X-Bridge design reducing tooth interference. Even under the maximum chainline, the chain engages with precision, ensuring the best drivetrain efficiency.

X-Ramp: KMC cassettes feature specially engineered shifting ramps that perfectly align with KMC chain plates. Combined with precision tooth profiles, this design enables rapid gear changes while minimizing chain bounce, delivering FlowCONTROL - the smoothest shifting experience that you’ve never had.

By integrating these three core technologies, the KMC drivetrain system offers high power transmission efficiency, precise shifting performance, and exceptional durability, adapting to various riding needs. Whether for leisurely rides or professional challenges, the combination of KMC chains, chainrings, and cassettes delivers unparalleled drivetrain efficiency and stability—an undeniable testament to KMC’s commitment to innovation and excellence.

HL1B: Unmatched strength, endless possibilities.

The HL1B achieves the highest strength in its design without increasing the overall weight. KMC has built a special structure that enhances strength, making the HL1B's strength up to 1350 kgf. An additional benefit from incorporating extra bushings inside the roller is a 30% increase in durability compared to the previous version. Combined with a special half-link structure, the HL1B integrates perfectly with any brand and size of bike. HL1B, with its exceptional high-strength design, is not only the top choice for BMX bikes but also the ideal option for durable E-CARGO bikes. Recognized for its outstanding quality and innovative technology, it has been honored with the 2025 TAIPEI d&I Award by iF Gold Award.

KMC GO Waxed Chain: Eco-friendly, Durable, Hassle-free

The KMC GO Waxed Chain is designed with long- term sustainability at its core. It utilizes biodegradable wax-based materials instead of traditional lubricants, significantly enhancing the durability of the drivetrain. This not only extends the product's lifespan but also makes the manufacturing process and daily maintenance more environmentally friendly.

Another key advantage of using the KMC GO Waxed Chain is saying goodbye to greasy, hard-to-clean chains and organic solvents, saving you cleaning time and allowing for a more enjoyable riding experience.

With its outstanding design, KMC GO has also been honored with the 2025 TAIPEI d&i Award by iF.

X Flat Chain: Compatible with SRAM Flattop

Technology for Enhanced Efficiency and Durability

The KMC X Flat 12-speed chain is specifically designed for SRAM Flattop technology, ensuring full compatibility with SRAM 12-speed drivetrains while delivering superior transmission efficiency with lighter weight. To align with the Flattop design, KMC has developed a narrower chain for precise shifting and a smoother riding experience. Engineered for strength and longevity, the X Flat 12-speed chain features a unique Flattop outer structure that effectively reduces dirt and debris from entering the drivetrain, reducing wear and significantly extending the lifespan of both the chain and drivetrain components. Experience a smoother, more durable ride with KMC’s advanced chain technology.

MissingLink Lever Plus Upgrade, the Ultimate Multi- Function Quick-Link Tool for Bike Maintenance

KMC continues to lead in bicycle tool innovation, expanding beyond drivetrain products to offer high-quality, cutting-edge repair solutions. In 2025, KMC launched the upgraded MissingLink Lever Plus — a versatile missing link tool designed to enhance bike maintenance efficiency.

This latest version retains essential functions like missing link removal and Presta valve core installation/removal with built-in integration for KMC’s mini chain tool, and a storage compartment for two missing links, making it even more convenient than ever. Engineered with an ergonomic design, it ensures an effortless and efficient repair experience.

As a global leader in bicycle chains, KMC is committed to providing innovative, high-quality cycling tools to meet the diverse needs of riders.