Ebike error codes and their solutions – Bosch 503, Shimano W103 and more | E-MOUNTAINBIKE Magazine
503 Error,how can i fix this? The battery works just fine,and for a moment,the battery would work after 25 km/h,i was with 30 km/h and the battery was working,i didnt upgraded the
Error on ebike bosch drive unit dont worry read this and solve any pr
sonstige(s) - Neu gekauft, schon kaputt, Fehler 503 | Seite 2 - Pedelec-Forum