SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Configuration-2x and side stabilization elements are

and side stabilization elements are manufactured from the same sheet of carbon

It is precision machined out of 7075-T6 aluminum for the lowest weight without any performance compromise

The three neatly nest together using magnets and clever machining for compact storage

If using a 9-speed drivetrain

SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Configuration-2x and side stabilization elements areSRAM X Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel. The EX1 drive train was designed specifically for the demands of electric assist mountain bikes: a wide gear range with bigger jumps between gears and sturdy components to handle higher torque loads. Liberal use of features found on SRAMs high end MTB parts provide high value quiet operation and ease of service. X Sync (wide narrow) tooth profiles for great chain management