The second generation of the Box One 11 Speed Derailleur features a new, adjustable Tri-Pack Clutch as well as significant improvements to the head and top link The second generation of the Box One 11 Speed Derailleur features a new, adjustable Tri-Pack Clutch as well as significant improvements to the head and top link Patent pending Pivot Tech works to prevent damage in the event of crashes or trail-side impacts through the use of a spring loaded cable stop With a maximum tooth count of 46, the Box One Rear Derailleur can easily handle today`s gear ratios and wide range cassettes Constructed with 6061-T6 aluminum, carbon fiber, and nylon composite for excellent strength to weight ratio and well as improved rigidity and response Head and top link are now forged rather than cast for improved strength and performance
