This is the product description text that will appear here.
Quantity
1
Description
The Box One Prime 9 Rear Derailleur takes the advantages of our legacy 9-speed drive-train but adds the advancements of a modern 1 by; a fully adjustable Tri-Pack™ Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construc...
Reviews
4.7
12 ratings
5
4
3
2
1
Great Derailleur
This is my third one, and I love the simplicity of 9 gears and an uncomplicated clutch system that works. The only reason I had to replace my last one was because I slammed into a tree and bent the arm. I love Box's customer service too!
D
Donnie · March 2, 2024
Box one
I had box two and loved it so I upgraded to box one. Still love it.