Kp1207

Unfortunately, there is a big arm in the way for part of the rotation, so I can’t extend the magnet like that. Needs to become electrical not mechanical.

Ok this might have been worded badly given your responses, so I’m sorry for that! Let me ask this way, imagine a speed sensor on a basic cycling computer, it needs a magnet passing it to register speed. However, that magnet is too far away. I can’t move the sensor, and I can’t move the magnet either. So I need to bridge the gap. That’s basically what I need! For actual info: The sensor is the e-bike speed sensor. I cant move it as no spare flex in cable. The magnet is far away, as it’s on the kickr trainer (yes, that link posted is the one) I could re-wire the sensor, but I’d rather recreate a signal of a magnet passing it.

Thank you. Yes, I have an e-bike already, but it needs a magnet sensor to activate, and if I remove the rear wheel it doesn’t have a magnet to activate! the 2nd magnet with superglue idea, my problem is it’s just too far away to activate. I need to bridge that gap somehow.

Sure thing. Picture of bike sensor: in red box is the area where the magnet passes and registers for speed. Picture of trainer: purple cross shows where the magnet should be, but there’s nothing rotating I can use so that’s a no go. The Red Cross shows where I could attach a magnet, but current sensor on bike won’t pick it up, too high and too far away. So I need something to read the signal from the Red Cross, and relay it to the sensor which is nearer the purple cross!

Hi all, I need to get a magnet relocation going, to a point higher up and further away. Essentially so I can use a smart trainer with e-bike power. The spinning disc is a good 80mm away and about 50mm up. System is tq trek domane. I see two options, 1. Build a relay like this, https://www.pedelecs.co.uk/forum/threads/ebike-derestrictor.25266/ but to be honest I don’t understand the coding part. 2. Buy a badass box and try to cut it up so the sensor (presumably a hall sensor) is further away on the circuit. But this looks tricky given the small circuit board. Any other ideas or suggestions please? Thanks in advance KP