Box Four 8 Speed Wide Rear Derailleur

Our 8 is Enough Derailleur
For Light/Medium Terrain
Limited Slip Clutch™
Bearing Pulleys

Box Four 8 Speed Shifter Black
Box Four 8 Speed 116 Link Chain Natural
Box Four 8 Speed 11-42T and also 12-42T eBike Cassette Black
Box Four 8 speed Wide/Narrow Chainring 104BCD 32T Black

Process/Material
• B-Knuckle: Die Cast / Aluminum
• P-Knuckle: Injection Molded / Glass-Nylon Composite
• Linkages: Die Cast / Aluminum
• Cage: Stamped / Aluminum
Finish: Matte Onyx
Speeds: 8
Compatibility
• Platform
• Ebike
• Non-Ebike
• Shifter
• Box Four 8 Speed
• Derailleur Hanger: Non-Direct Mount
Weight: 328g/11.5oz

Q: Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers?
A: No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs.

Q: Is the Box Three Prime 9 Derailleur compatible with other 9 speed components?
A: No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9.

Q: Are Box Prime 9 derailleurs compatible with drop bar (road) shifters?
A: 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.

Q: How should I clean my Box Three Prime 9 derailleur?
A: 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.

Q: How do I make adjustments to the derailleur?
Please see our installation video at
A: https://boxcomponents.com/collections/support

Q: Can I adjust the Limited Slip Clutch on my derailleur?
A: No, the clutch system on this derailleur is not adjustable.

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.

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.