SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Model-Dropout 636 without needing to unpack your

without needing to unpack your tool wrap on the trail

"stompable" blades

Tacky texture provides excellent grip with or without gloves in all weather conditions

or off-piste

try using a chainguide or chainkeeper in addition to a clutch-type rear derailleur

SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Model-Dropout 636 without needing to unpack yourSRAM 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