KMC (KUEI MENG) International Inc.  

The DLC chains utilizing techniques from the Swiss watch industry, the Titanium Carbon Nitride coating technology brings significant upgrades to the hardness and smoothness of chain. Diamond level durability enhance 3 times chain life mileage sharply. Black diamond base and customized color to draw attention to frame design and style are prime choices of elite racing chains that provide outstanding performance and unique implementation of aesthetics and personla style. 

e12 has all of KMC's 12-speed chain tech, Combined with new "Shield Tech", a patented new riveting tech that utilizes a reinforced pin design, significantly increases pin power. providing a 25% stronger chain, the oversized pin design upgrades pin power to 450kgf which easily overcomes tensile strength up to 1050kgf.  e12 Enhanced tensile strength and rigidity absorbs the constant load generated by strong mid-motors. Special pin treatment enhances the durability and prolongs mileage to 3 times longer than standard chains.The new eBike-dedicated chain made for all 12-speed e-Bikes.

EPT chains merge with anti-rust technique from Automobile industry's Eco ProTeQ which coated on chain components. Premium protection enables EPT chain to conquer 10 times corrosion resistance. Worry-free components that can be hosed down after a muddy trail. Easy to maintenence and reduce the waste of resource.

Every component of KMC's X12 chain has been carefully designed to be thinner, faster, stronger, X12 has exclusive double X inner bridge design where inner chamfering has been carefully designed to mesh with cog teeth while also allowing more movement of the chain on the teeth to accommodate the extreme chainlines, both horizontally AND diagonally, of 12 speed 1x systems. Asymmetrical chamfering aids in enhanced shifting performance via an optimal chain plate design for maneuverability on a tighter cassette and multiple chainrings.
KMC new X12 is compatible on ALL 12 speed drivetrains. Available with many coating options including Ti-N/Jet Black and popular EPT anti rust treatment to suit everyone’s needs and style. 

KMC created the "Chain Mate" where the chainring roller seats between teeth are matched to chain rollers for exceptional component engagement. Made of High Tensile Steel, the Chainring structure enhances retention with an optimized tooth design to hold the rollers in place, significantly preventing chain drop while also reducing friction associated with traditional narrow/wide designs. In addition, the tooth is vertically asymmetrical to avoid interference while at extreme chain angles to the cassette.
Compatible with Bosch Gen3, Gen4, Shimano and Yamaha drivetrain systems, KMC Chainring perfect pairing allows the utmost efficiency via chain rollers and cog teeth interaction for the most professional performance.

KMC offers a total e-Bike Solution for superior chain and cog tooth running efficiency and specially designed teeth for enhanced chain retention.

Chain Mate

The Chainring roller seats between teeth are perfectly matched to chain rollers for exceptional component engagement, with higher power transmission efficiency and longer component lifespan.

KMC Shield Riveting

Shield Tech is a patented new riveting tech that utilizes a reinforced pin design, the pin surface raise 10% and significantly increases 25% pin power.

Optimal Tooth Design

Chain retention is enhanced via an optimized tooth design to hold the rollers in place, preventing chain drop while also reducing friction.

KMC redesign a intuitive self-check tool. Provide a clear interval to identify the wear condition, with 3 different stamped numbers easily diagnoses the chain’s condition. Also, inverted the chain checker can turn into chain hook.

A handy device that can accurately diagnose the chain's condition. This tool will extend drivetrain life by preventing excessive wear of the chain roller and cassette.

With the chain completely covered and securely held in place by a screw-in cap, users no longer need to use their hands to hold the chain, eliminating problems like the chain dangerously slipping out of position. The amount of force that is applied to the Mini Chain Tool is the same as that of traditional tools, however pressure is evenly applied, allowing the process to be safer and more efficient. The Mini Chain Tool is suitable for single to 12-speed chains.

An accurate chain latch to firmly hook on the chain to keep it together during disassembly while the latch grooves can also disentangle dropped chain without a mess; a convenient and secure Missinglink storage is suitable for every speed; a heart shape valve core tool corresponding to two sizes to disassemble valves before every ride to easily fill in tire sealant; a tire lever with optimal angle and spoke hook design made from tough, industry-grade plastic.