I need some help as I am concerned in a possible issue with the front wheel Bafang 8fun 250W motor. I have noticed what feels like an intermittent rubbing sensation that feels like a brake block making contact to a buckled rim. After having rim trued up & brakes adjusted, it is still there. I have loosened up the brakes to eliminate them & rubbing sensation is still there. So I now know the rim & brakes are not the cause of the rubbing sensation I feel & unsure if it is meant to be there in the motor hub.
I have looked further into what could be the cause & noticed the wheel rocks sideways on its spindle of about 1-2mm, but as I am unfamiliar with motorised wheels I am unsure if this meant to be like this as I know it's not meant to be on standard bikes & I don't want to open up the motor to see just yet as could be a warranty issue. Could anyone please advise as I wont use it until I am sure its not going to damage the motor & both dealer & manufacturer are taking ages to get back to me. So looking at fellow pedelecs who might know & have experience of this.
See photo included of the hub, the movement is the spindle itself. Shown in the photo as red is the centre line of the spindle & in green is the approx movement of about 1mm. The wheel does spin freely as a wheel with a motor built in would. When spinning the wheel in the air, the rubbing sensation is not there. Its only noticed when cycling & under load of using the bike. The motor is working fine but I am concerned the rubbing sensation I am feeling could damage the motor & why I aint riding it atm until I know for sure so need to find out ASAP as to what it could be & then how to resole it.
I have looked further into what could be the cause & noticed the wheel rocks sideways on its spindle of about 1-2mm, but as I am unfamiliar with motorised wheels I am unsure if this meant to be like this as I know it's not meant to be on standard bikes & I don't want to open up the motor to see just yet as could be a warranty issue. Could anyone please advise as I wont use it until I am sure its not going to damage the motor & both dealer & manufacturer are taking ages to get back to me. So looking at fellow pedelecs who might know & have experience of this.
See photo included of the hub, the movement is the spindle itself. Shown in the photo as red is the centre line of the spindle & in green is the approx movement of about 1mm. The wheel does spin freely as a wheel with a motor built in would. When spinning the wheel in the air, the rubbing sensation is not there. Its only noticed when cycling & under load of using the bike. The motor is working fine but I am concerned the rubbing sensation I am feeling could damage the motor & why I aint riding it atm until I know for sure so need to find out ASAP as to what it could be & then how to resole it.
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