Box One Prime 9 X-Wide Rear Derailleur

Our Best Performing Derailleur
For Aggressive Terrain
Adjustable Tri-Pack™ Limited Slip Clutch
Precision Sealed Bearing Pulleys
Pivot-Tech™ Cable Stay

Box One Prime 9 11-50T and also 12-50T eBike Cassette Black
Box Two Prime 9 11-50T and also 12-50T eBike Cassette Black
Box Three Prime 9 11-50T and also 12-50T eBike Cassette Black
Box One Prime 9 Chain 126L DLC Black
Box Two Prime 9 126 Link Chain Nickel
Box Three Prime 9 126 Link Chain Polished
Box One Prime 9 Shifter Black
Box Two Prime 9 Shifter Black
Box Three Prime 9 Shifter Black

Process/Material
· B-Knuckle: 3D Forged / Aluminum
· P-Knuckle: Injection Molded / Carbon-Nylon Composite
· Linkages: 3D Forged / Aluminum
· Cage: Forged / Aluminum
Finish: Gloss Hard Onyx
Speeds: 9
Cable: Box One Slick Coated
Compatibility
· Platform
· Ebike
· Non-Ebike
· Shifter
· Box Two Prime 9
· Box Three Prime 9
· Derailleur Hanger: Non-Direct Mount
Weight: 290g/10.2oz

Prime 9 Box One & Two Installation

Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers?

No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs.

Q: Can I install this on my bike that uses a b-link for my current derailleur?
A: Yes! All you need to do is remove your old derailleur and the b-link leaving the standard hanger attached to your bike frame. You can now mount your Box Components derailleur directly to the hanger on your frame.

Q: Can I install this on my bike that currently has a direct mount hanger?
A: Possibly, you will need to see if your frame manufacturer or a third party like wheelsMFG offers a standard mount hanger for your frame.

Standard Mount vs. Direct Mount Derailleur Hangers

Is the Box One Prime 9 Derailleur compatible with other 9 speed components?

No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9.

Are Box Prime 9 derailleurs compatible with drop bar (road) shifters?

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.

How should I clean my Box One Prime 9 derailleur?

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.

How do I make adjustments to the derailleur?

Please see our installation video at https://boxcomponents.com/collections/support