SRAM 16t Bosch Direct Mount 11/12-Speed X-Sync2 Eagle Chainring BlackSRAM 16t Bosch Direct Mount 11 12 Speed X Sync2 Eagle Chainring Black. The SRAM X SYNC 2 Eagle direct mount chainrings are built with the needs of E MTB riders in mind. They feature the same chain management technology for SRAM 1x drivetrains designed for Bosch motors. Sharp narrow tooth profile and rounded chamfer edges help manage a deflected chain Mud clearing recesses TECH SPECS Color Black Defined Color Black Designed for ebike Yes Direct Mount