KMC K1SL Wide 1/8" Chain

Overview

The KMC K1SL is a lightweight 1/8" single-speed chain engineered for BMX and fixed-gear bikes. Featuring hollow construction, nickel plating, and anti-drop design, this chain minimizes weight while maintaining durability and reliability under the demands of tricks, jumps, and consistent power transfer.

Key Features

• Super Light Construction — Hollow outer plates and hollow pins reduce overall weight without sacrificing strength; ideal for riders prioritizing responsiveness and reduced rotating mass
• Full Nickel Plating — Complete corrosion-resistant finish protects against rust in wet conditions; maintains smooth operation with minimal maintenance
• Anti-Drop Design — Special link geometry prevents chain from falling off sprockets during tricks or sudden deceleration; critical for single-speed reliability
• Inner Plate Chamfering — Beveled plate edges reduce friction and noise; improves shifting smoothness on single-speed setups
• Mud Shedding — Hollow construction and open link design allow dirt and mud to pass through rather than accumulate; reduces drag and maintenance
• Stretch Proof Treatment — Chemical treatment resists chain stretching and elongation under high tension loads common in BMX
• Special K Configuration — Proprietary dynamic link design balances lightness with durability across BMX and fixed-gear applications

Technical Specifications

• Chain size: Wide 1/8"
• Chain type: Classic links
• Link count: 100 open links
• Pin construction: Hollow pins
• Plate construction: Hollow outer plates with chamfered inner plates
• Finish: Full nickel plating
• Stretch resistance: Stretch proof treatment

Compatibility & Ideal Use Cases

Compatible with all single-speed BMX frames, fixed-gear bikes, and cruisers using 1/8" sprockets and cogs. The anti-drop design and lightweight construction make this chain ideal for street, park, and trick riding where chain reliability and minimal weight are critical. Excellent for riders in wet climates thanks to nickel plating and mud-shedding design. Also suitable for riders seeking a low-maintenance chain that performs consistently across varied riding conditions without frequent cleaning or adjustments.

Super Light Full Nickel Plated Hollow outer plates Inner plate chamferring Mud shedding

Anti drop design Hollow pin Special dynamic K configuration Heavy Duty Structure Stretch Proof Treatment