Precise and dependable the SRAM XX1 Grip Shifter does all the hard work for you, 11 speed performance is here to stay.Starting with the shift cover, SRAM now uses a carbon cover for the XX1 to reduce weight and increase durability. Under the cover, the shifter barrel no longer rotates on plastic parts, instead, rotating on three rows of stainless steel ball bearing. This system provides a smoother shifting due to the near elimination of friction and play.Further contributing to the shift quality, XX1 now uses X-Actuation to deliver precise movement across the 10-42t cassette. The shifting index has also been updated from plastic to SRAM's Speed Metal 7075 aluminum indexing. With a more refined, durable surface, the index is highly-resistant to wear. Speed Metal is designed to accommodate the tighter tolerance of the XX1's 11-speed drivetrain. The new internal design increases the longevity of your shifters while aiding in the increase of shift accuracy and feel.Jaws:Once the Grip Shift