Paint peeling off Stromer motors with a battered surface coating can often be seen in the forums. There are relatively many posts in which the...
Freewheel defective Stromer models with a chain have a freewheel located in the hub motor. It is an independent mechanical component and provides the connection between the motor and the...
Hall or temperature sensor defective? In general, motor damage on newer Stromerbikes is rather rare. With the old motors (ST1 V1 / V1.1) and integrated electronics, there were...
Power electronics defective (ST1 V1 / V1.1 - 36 V) Motor damage in newer Stromer models is rather rare today. With the old 36 V motors (ST1 V1 / V1.1) with integrated...
Motor makes noises, vibrates, hums, hardly any support Symptoms Engine suddenly makes a lot of noise and vibrates while driving at low speed. The symptoms are permanent when the...
Motor overheats / temperature warning Aufgrund der Konstruktionsweise sind die Stromer Nabenmotoren relativ „drehfaul“ (max. 395 U/Min.) und im unteren Drehzahlbereich bzw. niedrigen Geschwindigkeiten (<...
Motor "stalls", "rattles" (ST2 / ST2S) Symptoms Possible Cause The engine can be checked for its function with the SIT (System Integration Test). See ELECTRICITY / ELECTRONICS – Testing...
Repairs to the TDCM engine Stromer does not repair Stromer parts or components. Dealers who send in defective components (battery, motor, controller, etc.) will receive a...
Rotor magnets loose If you hear noises from the motor, these usually come from the bearings, more rarely from the quick-release axle (clacking, ST1x). Loose rotor magnets...
Spokes torn out Every now and then you read about problems with torn spokes on the rear wheel. The problem seems to occur sporadically and there probably...