I am installing a 250w rear hub motor to a cycle and have hit a snag.
I suspect i have killed my pas sensor (SM-A3).
i have the cheap Yose Power 250w rear hub kit.
sensor manual
Following the many vids of installation the pas sensor seemed like a simple push fit. However my crank wanted to argue.
its a Chinhaur 122.5 mm bottom bracket and with the pas sensor fitted the crank offers noticeable resistance to movement and when it finally turns is quite scratchy (forward - bike on its bars n seat) It appears as if the square shaft end is shorter with my crank revealing a larger diameter shaft about 1cm before the hub which the sensor is too tight a fit on, I will attempt to pry off again and perhaps file down the inner race perhaps??
working on the assumption i have killed the pas sensor is there an alternative sensor option there appears to be at least one other type (2 part clamp around type) - Are these interchangeable? replacing the bottom bracket seems a bit ott to get a sensor working?
all encouragement and help appreciated. i can post pics if needed ( charging atm)
I suspect i have killed my pas sensor (SM-A3).
i have the cheap Yose Power 250w rear hub kit.
sensor manual
Following the many vids of installation the pas sensor seemed like a simple push fit. However my crank wanted to argue.
its a Chinhaur 122.5 mm bottom bracket and with the pas sensor fitted the crank offers noticeable resistance to movement and when it finally turns is quite scratchy (forward - bike on its bars n seat) It appears as if the square shaft end is shorter with my crank revealing a larger diameter shaft about 1cm before the hub which the sensor is too tight a fit on, I will attempt to pry off again and perhaps file down the inner race perhaps??
working on the assumption i have killed the pas sensor is there an alternative sensor option there appears to be at least one other type (2 part clamp around type) - Are these interchangeable? replacing the bottom bracket seems a bit ott to get a sensor working?
all encouragement and help appreciated. i can post pics if needed ( charging atm)