KMC BMX Single Speed Bike Chain HL1L K1 K1SL Z1eHX – 1/2" x 1/8" Wide / 3/32" Narrow Fixie Bicycle Chain fixied gear

KMC BMX Single Speed Bike Chain HL1L K1 K1SL Z1eHX – 1/2" x 1/8" Wide / 3/32" Narrow Fixie Bicycle Chain fixied gear

KMC BMX Single Speed Bike Chain HL1L K1 K1SL Z1eHX – 1/2" x 1/8" Wide / 3/32" Narrow Fixie Bicycle Chain

Technical Specifications

Product Description

KMC High-Performance 1-Speed Bicycle Chain

A range of genuine KMC single-speed bicycle chains designed for BMX, fixed-gear, single-speed, city and compatible e-bike drivetrains.

Choose from HL1L Wide, K1 Wide, K1SL Wide and Z1eHX Narrow according to your drivetrain and chainring/sprocket width. Each model is engineered for reliable power transfer, secure chain engagement and long-lasting performance.

Whether you need the versatility of a half-link chain, the strength of the K1 series, the lighter construction of the K1SL, or the reinforced Z1eHX for demanding applications, there is an option for different single-speed setups.

Model Options

HL1L Wide – Half-Link Chain

• Speed: 1-Speed / Single Speed
• Size: 1/2" x 1/8"
• Links: 100 Links
• Weight: Approx. 367g
• Colors: Gold / Silver
• Half-link construction
• Designed to allow finer chain-length adjustment
• Suitable for different bicycle frame geometries
• Strong construction for BMX and single-speed use

The half-link design makes it easier to achieve precise chain tension, particularly on BMX, fixie and other bicycles where rear-wheel adjustment range may be limited.

K1 Wide – Heavy-Duty Single-Speed Chain

• Speed: 1-Speed / Single Speed
• Size: 1/2" x 1/8"
• Links: 112 Links
• Weight: Approx. 433g
• Color: Silver / Black
• Connector: MissingLink / CL710
• Reinforced K-shaped outer plate design
• Designed for high strength and durability
• Improved chain retention
• Suitable for BMX, fixie and other wide single-speed drivetrains

The K1 is designed for riders who prioritize strength and durability. Its reinforced plate structure helps handle the high loads and impacts commonly encountered in BMX and aggressive single-speed riding.

K1SL Wide – Lightweight Performance Chain

• Speed: 1-Speed / Single Speed
• Size: 1/2" x 1/8"
• Links: 112 Links
• Weight: Approx. 380g
• Colors: Gold / Silver
• Connector: MissingLink / CL710
• Lightweight plate construction
• Hollow-pin design
• Reinforced K-shaped outer plates
• Improved chain retention
• Suitable for BMX and performance single-speed bicycles

The K1SL combines the strength-oriented K-series design with weight-saving construction. Hollow pins and optimized chain plates help reduce overall weight while maintaining dependable drivetrain performance.

Z1eHX Narrow – Reinforced Narrow Single-Speed Chain

• Speed: 1-Speed / Single Speed
• Size: 1/2" x 3/32"
• Links: 112 Links
• Weight: Approx. 374g
• Color: Silver
• Connector: MissingLink / ZL578
• HX reinforced construction
• Reinforced chain pins
• Improved wear resistance
• Anti-drop chain design
• Suitable for narrow single-speed drivetrains and compatible e-bike applications

The Z1eHX uses a narrower 3/32" format and reinforced construction, making it suitable for applications where a narrow single-speed chain is required.

Key Features

Strong & Durable Construction

Designed for reliable power transmission under the higher loads commonly seen on BMX, fixed-gear and single-speed bicycles.

Secure Chain Engagement

Optimized plate construction helps the chain engage securely with compatible chainrings and sprockets for stable operation.

Wide & Narrow Options

Choose 1/2" x 1/8" Wide or 1/2" x 3/32" Narrow according to your drivetrain.

BMX & Single-Speed Ready

Suitable for BMX, fixie, track-style, urban, cruiser and other compatible single-speed bicycles.

Multiple Performance Levels

From the adjustable HL1L half-link chain to the reinforced K1, lightweight K1SL and narrow Z1eHX, different options are available for different riding requirements.

Specifications

Compatibility

Suitable for compatible:

BMX Bikes / Fixie Bikes / Fixed-Gear Bikes / Single-Speed Bikes / Track Bikes / Urban Bikes / Cruiser Bikes / Compatible E-Bikes

Important:

Please check your chainring and rear sprocket width before ordering.

• HL1L / K1 / K1SL: 1/2" × 1/8"
• Z1eHX: 1/2" × 3/32"

Installation Note

Chain length should be determined according to the actual bicycle setup. If shortening the chain is required, use a proper bicycle chain tool.

Always install the correct compatible connecting link supplied or specified for the chain model. After replacing a chain, inspect drivetrain adjustment and sprocket/chainring wear before riding.

Available Options

Each row below is one available option combination. Choose the complete combination that matches your setup.