Rivendell OM-1 Rear Derailleur (Silver)

We're thrilled to finally have the new Rivendell Bicycle Works OM-1 Rear Derailleur in stock. This beautifully crafted, jewel-like component is a refreshing reminder that mechanical ingenuity still has a place in modern cycling. The OM-1 uses Rivendell's long-developed Opposite-Movement (OM) design, a concept they spent more than eight years refining before partnering with Microshift to bring it to life. The result is a derailleur that is mechanically robust, remarkably smooth in operation, and unlike anything else currently on the market. Built for riders who appreciate thoughtful engineering and timeless functionality, the OM-1 is more than just a conversation piece—it's a dependable, high-performance derailleur designed to be used and enjoyed for years to come. Specifications Maximum rear cog: 36T Chain wrap capacity: 39T Weight: 7.85 oz (223g) Finish: Silver Manufactured by Microshift to Rivendell's specifications Despite its classic appearance and rugged construction, the OM-1 is surprisingly light—lighter than the vast majority of derailleurs available today. Rivendell wasn't chasing weight savings, but excellent design has a way of producing elegant results. Each derailleur comes packaged in Rivendell's signature information-packed box, complete with technical details, setup information, and a beautifully illustrated user guide. For riders who appreciate durable, serviceable, and mechanically satisfying bicycle components, the Rivendell OM-1 is a welcome addition to the modern drivetrain landscape.