Box Two Prime 9 X-Wide Rear Derailleur Size:X-Wide Cage This simplification makes any cockpit

This simplification makes any cockpit clean and tidy by integrating 2 clamps into one

The main difference here versus Box Two is the use of additional weight-reducing holes on the cogs

The chain is polished and then chemically treated to achieve corrosion resistance

Our unique inner link spacing is engineered to grab those modern wide/narrow chainrings

Originally conceived as an E-MTB product to deliver long service life and extra range over fewer gears

Box Two Prime 9 X-Wide Rear Derailleur Size:X-Wide Cage This simplification makes any cockpitThe Box Two Prime 9 Rear Derailleur is very similar to the Box One version however, to be more wallet friendly, it offers a non adjustable Tri Pack Clutch, bushing pulleys and some muted finishes. Box Two rear derailleurs are still optimized for 11 50t cassettes and offer durability and performance for the most demanding terrain, just at lower price! IMPORTANT NOTES Prime 9 Technology View Prime 9 Drivetrain Compatibility Manual How is the Ebike