Box Two Prime 9 X-Wide Rear Derailleur Size:X-Wide Cage See the comparison chart -

See the comparison chart - the data speaks for itself

you'll receive a Box One shifter

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

The Box Two shifter is the only shifter on the market (other than our Box One) that comes factory stock with a hinged clamp

The Box Three shifter makes good use of nylon composites in both top and bottom shells as well as the levers

Box Two Prime 9 X-Wide Rear Derailleur Size:X-Wide Cage See the comparison chart -The 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