Box Three P9 Wide Multi Shift Groupset

Our Best All-Rounder Drivetrain
For Light / Medium Terrain
Install at Home with Some Simple Bike Tools and Our Easy to Follow Video
Limited Slip Clutch™
Ultra-Wide Ratio with Consistent Progression
Compatible with Traditional Derailleur Hangers (Non Direct-Mount)
Cassette Compatible with HG Freehub Bodies
Prime 9 Technology™

Compatible with most 10,11, & 12-speed wide / narrow chain rings. Prime 9 chain must be used.
Not Intended for Ebike Use

SHIFTER

Does the Box Three Prime 9 Shifter come with a cable?
Yes. All Box Three Shifters come with a stainless steel shift cable.

How do I remove the cap from the cable port to install a new cable?
To remove it, use a Phillips head screwdriver and turn it counter-clockwise a quarter turn You can then push the cap out by applying pressure to the cable from the other side. Please Note: The Cable Port is not a screw that un-threads from the cable port, if you turn the cable port screw more than 90 degrees damage may occur.

Is the Box Three Prime 9 Shifter compatible with other 9 speed derailleurs?
No, traditional 9 speed systems use a Cable Pull that is not compatible with prime 9.

DERAILLEUR

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.

Is the Box Three 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 Three 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

CASSETTE

Will the Box Three Prime 9 Cassette fit on an wheel with a Sram XD Driver?

No this will only work with a HG splined Shimano 9-10-11 speed freehub body.

Is the Box Three Prime 9 Cassette compatible with other 9 speed drivetrains?
No, The Box Three Prime 9 Cassette is optimized for Box Prime 9 drivetrains and running other component variations can result in poor performance.

How should I clean my Box Three Prime 9 Cassette?
We suggest removing the cassette from the wheel and using a soft bristle brush 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.

CHAIN

Is the Box Three Prime 9 Chain compatible with other 9 speed drivetrains?

Yes, All Box prime 9 chains have standard external geometry that will work with most existing 9 speed drivetrains.

Is the Box Three Prime 9 Chain Compatible with any wide narrow chainring?
No, Box Prime 9 chains are compatible with most 11-speed wide narrow chainrings but there are some chainrings that can result in poor performance. We recommend the following 11 speed wide/narrow chainrings for best performance, Wolftooth Components, Raceface, One Up Components, Absolute Black.

How should I clean my Box Two Prime 9 Chain?
We suggest removing the chain 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.