From the manual: > This bicycle is powered by a belt drive, which is a rustproof, durable and maintenance-free alternative to a regular chain. Seems like it's

From the manual: > This bicycle is powered by a belt drive, which is a rustproof, durable and maintenance-free alternative to a regular chain. Seems like it's a similar but different system to produce the same outcome. It also says to not oil it, just wash with water. The bike also has no gear cables so it looks like it's designed to minimise maintenance as much as possible and that's a part of it.