KMC HL1 Narrow Half-Link Chain — Single Speed, 100 Links, Nickel Plated, Silver

The KMC HL1 Narrow is a half-link single-speed chain designed for BMX and other single-speed bikes where precise chain length and wheel positioning matter. The half-link design allows finer adjustment than a standard chain, making it easier to dial in chain tension without relying on aggressive axle movement. This is a durable, shop-proven chain commonly used on BMX, dirt jump, and single-speed builds that prioritize strength, alignment, and simplicity over weight savings. Key Features • Single-speed half-link chain design for precise chain length adjustment • Narrow profile suitable for modern single-speed drivetrains • Full nickel plating for corrosion resistance and extended service life • Heavy-duty construction designed for BMX and high-load riding • Silver finish • 100 links • Chain size: 1/2" x 3/32" Compatibility & Use Notes • Designed for single-speed drivetrains only • Compatible with BMX, dirt jump, and single-speed bikes • Not compatible with multi-speed derailleur systems • Chain sizing and tension should be set carefully due to half-link construction • Requires a chain tool capable of handling half-link chains Service / Ownership Context Half-link chains are heavier than standard single-speed chains but offer superior adjustability and alignment. From a service standpoint, they’re ideal when peg clearance, axle position, or frame geometry limits standard chain tensioning. Proper lubrication and regular inspection will maximize chain life, especially under BMX-style loads.