Box Two 7 Speed Rear Derailleur - boxcomponents

Box Two 7S Derailleur

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Tri-Pack Limited Slip Clutch™

The Tri-Pack limited slip clutch™ is an innovative chain damper that vastly reduces derailleur cage bounce and chain slap. The system also maintains tension for better chain wrap. At its core is a clutch pack, that is capable of providing a large amount of force in a small package.

Durable 3D Forged Linkages

Impact resistance is greatly improved by way of forging — a key manufacturing process that strengthens critical components. Tested at the premier freeride event of the season — Red Bull® Rampage — this new construction has proven itself capable of performing at the highest level.


Impact resistant, spring-loaded cable stay keeps cable, housing & you out of harm’s way.


No. The version of the Tri-Pack Limited Slip Clutch found in Box Two derailleurs is permanently preset at the factory and is therefore not adjustable.

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

Box 7 speed derailleurs are not compatible with SRAM 7 speed road shifters. They can however be used with Shimano 7 speed road shifters (requires a mode converter like Wolf Tooth's Tan Pan).

View & download instructions here: PDF File

View & download instructions here: PDF File


Speeds 7 Speed
Materials 6061-T6 Aluminum, Glass fiber/Nylon Composite
Pulleys Closed Bushings
Cage Size DH
Minimum Cog 11T
Maximum Cog 24T
Hardware Aluminum / Cr-Mo alloy
Color/Finish Hard Onyx™
Weight 279 grams / 9.8 ounces
Technology Tri-Pack™ Limited Slip Clutch, Pivot Tech™