I have gone over 54K miles on my two electric assist bikes. One of the halls started acting up on my mid-drive MAC bike at 8K miles. At 9K it stopped working all together. I replaced the cheap sensored controller with a cheap sensorless, and rode another 21K miles. It sort of worked, but was never as efficient, and growled unhappily on startup much of the time.
My big DD cargo bike worked perfectly for 22K miles, but has now started acting up intermittently over the last 1,200 miles. Being a very high power DD, when one of the halls quits, it is like one of my old 4 cylinder cars when a plug would fail...rough running, noisy, low torque. As with the MAC, the problem is happening more frequently, for longer, and I eventually will have to give up,and do something.
Here is my dilemma. I am old, with the failing eyesight, and shaky hands that come with age. I don't feel confident to replace the halls, and understand that there is a good chance of ruining them with static from my hands when doing the installation.
I searched around and found someone who had put external halls on a skateboard outrunner motor. Getting halls near the magnets on a hubmotor would probably be impossible with the spokes in the way, but what about a simple magnet ring, like people use for pedelec? It seems like an external encoder would be a great aftermarket product for somebody....Justin?
My big DD cargo bike worked perfectly for 22K miles, but has now started acting up intermittently over the last 1,200 miles. Being a very high power DD, when one of the halls quits, it is like one of my old 4 cylinder cars when a plug would fail...rough running, noisy, low torque. As with the MAC, the problem is happening more frequently, for longer, and I eventually will have to give up,and do something.
Here is my dilemma. I am old, with the failing eyesight, and shaky hands that come with age. I don't feel confident to replace the halls, and understand that there is a good chance of ruining them with static from my hands when doing the installation.
I searched around and found someone who had put external halls on a skateboard outrunner motor. Getting halls near the magnets on a hubmotor would probably be impossible with the spokes in the way, but what about a simple magnet ring, like people use for pedelec? It seems like an external encoder would be a great aftermarket product for somebody....Justin?