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,...