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Hi, I have a Chinese Noname 36V, 250W brushless ebike controller which works fine. I have now decided to connect brake levers with switches in order to implement the braking function on the controller. Like many controllers mine has "Brake High" and "Brake Low" connectors. I only recently...

Hi, The 'noname' 250W bldc motor on my bike seems to have developed an odd fault. Occasionally when under load it loses power and makes a grinding noise for a couple of seconds. My suspicion is that some of the magnets have become loose in some way. I have yet to dismantle it to see if my idea...

Hi, I am putting together parts for a home-brew e-bike, and have encountered a small problem that's nothing to do with electricity! I have a "Power Circle" wheel with hub motor and wish to correct the rim runout. Easy, I thought, just need to get a nipple wrench the correct size. However, I...

I have had one of the Chinese testers for a while, (the one with all the LED's and wires) but only just got to use it for real! However, it seems to have thrown up more questions than answers. I've used it to test the Hall sensors, throttle and motor phases and all seem sort of OK; the only...

I have a rear wheel which I wish to dismantle in order to examine the internals of the motor. However, not being conversant with the construction of the hub I'm at a loss to know how it comes apart. I've attached a couple of photos of each side of the hub. I have already deduced that I will...

Hi there, Apologies if this is an inappropriate post, as I am new here. My friend has given me his e-bike controller to attempt a repair, but without the bike! I had assumed it would be a simple internet search to find the assignment of the various connectors, but encountered a vast range of...