SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 16T Straight Steel MFPN=HSA-IB42SSSX-S offering a fit that suits

offering a fit that suits a wide range of foot shapes

chunky trails

both front-to-back and side-to-side

Improved grip in wet conditions

SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 16T Straight Steel MFPN=HSA-IB42SSSX-S offering a fit that suitsSRAM X Sync EX1 Sprocket Chainring for Bosch Motors 16T 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