The BOX One rear derailleur is an 11 speed mountain derailleur that was designed for performance with durable 3D forged linkages as a way to greatly improve impact resistance. BOX also incorporated their tri-pack limited slip clutch system to drastically reduce derailleur cage bounce and chain slap.
- Impact resistance is greatly improved by way of 3D forged construction
- The Tri-Pack limited slip clutch is an advanced chain retention system that provides instant engagement and long-lasting chain dampening through the use of a one-way roller bearing and composite friction plates
- Impact resistant, Pivot-Tech spring loaded cable stay keeps the cable, housing, and you out of harms way
- Precision sealed bearing pulleys
- Wide cage fits up to 46T cassette cog, X-wide fits up to 50T
Speeds: 11 speed
Max Cog: 46t