Part of the new sram apex groupset this has the new precise exact actuation ratio that offers the widest range of adjustment coupled with a precise geometry wifli technology wider faster lighter based on the compact 2 x 10 two front chainrings and 10 gears in the rear design delivers a wider range of gears than your standard triple faster shifts through two chainrings and 10 gears and with significant weight savings the wider range of gears provides efficiency for improved climbing and