SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Model-Dropout 636 try using a chainguide or

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

or off-piste

Mounting Type by Brake Model

Toko Thermo Plus: Cold Weather Glove

Lower Headset - 28g

SRAM X-Sync EX1 Sprocket Chainring for Bosch Motors 18T Straight Steel Model-Dropout 636 try using a chainguide orSRAM 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