You may wonder: "what is so special about a single speed chain?" Indeed, most manufacturers offer one model only. KMC disagrees. A chain for a Rohloff internal gear has totally different requirements compared to a chain fitted on a children's bike. That's why KMC has put a lot of effort into research- and development of these chains, solely for single speed or internal gear bikes

Our Z1 narrow series contains:

• A special Extra long model for Heavy Duty and E-Bike use (Z1 HX Narrow)
• No-Drop inner plates, preventing chain drop (all models)
• Silent action (all models)
• Rust Buster coating (Z1X RB Narrow) for great rust resistance
• "Longlife" (Z1 HX Narrow & Z1X RB Narrow)