The Box One Prime 9 Rear Derailleur takes the advantages of legacy 9-speed drive-trains but adds the advancements of modern 1 by drive-trains; a fully adjustable Tri-Pack™ Clutch, Forged Construction, and Optimization for an 11-50t cassette steps up the durability and performance to an unparalleled level suited for the most demanding terrain.
Prime 9 Box One & Two Installation
No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs.
No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9.
No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars.
We suggest removing the derailleur from the bike and using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.
Please see our installation video at boxcomponents.com/service
|Material||Stainless Steel, Hardened Alloy Steel, Nylon Composite|