Why do you want a split one? It doesn't take much to fit a normal one. Your controller will work with more magnets, but the split ones (it seems) only work on one side, so you have to make sure that you get the correct hand.
Are you sure about all that? Did you test that what you said is true for the split disc type?The split PAS can actually work on either side - although you're right d8veh they are designed to be used normally on the LHS (out of the way of the gears) with the sensor position like in the attached video. This means the magnets on the disc are passing from left to right across the face of the sensor as you pedal forwards and this creates a positive voltage.
If you put the pas on the RHS with the sensor the same way up, then you need to pedal backwards to have the magnets passing from left to right across the face of the sensor and thus get the positive voltage. The quick way to solve this is just to fit the sensor upside down onto the bike so now the magnets pass from left to right across the face of it when you pedal forwards
It's all in the physics, got to love Fleming's left hand rule of magnetism!
(Actually another alternative solution is to swap the wires around going to the controller, this changes the polarity of the output voltage generated)
If you're handy with bikes and have the right tools then fitting a normal PAS is fine - but the split PAS is great for people who find removing the crank etc. difficult. As you can see from the video it's dead easy to fit, and makes the whole conversion process accessible to someone who just wants to "plug-n-play"
Hi d8veh,Are you sure about all that? Did you test that what you said is true for the split disc type?
All the ones I've seen use hall sensors, so you can't reverse any wires. They have three wires too, so which ones would you reverse?
The ones that I've seen with a removable segment held on with a big circlip have a double hall sensor arrangement so that it works in the same direction regardless of which way up the magnet disc, so if you have a left handed one, you can't use it on the right hand side by flipping the magnet or reversing any wires.
The cheaper ones with a single hall sensor can be fitted either side by flipping the magnet disc. I haven't seen a splittable one like that.
Some of your listings show the split disc with the double hall sensor, which are handed. Other listings show the unsplittable discs with te single hall sensor, which are not handed. Which ones are you referring to? OP was asking for your split type. I just fitted one to a bike yesterday. I checked, and it's definitely handed.Hi d8veh,
Yep I promise you the PAS we supply can work on either side of the bike, just by swapping the orientation of the sensor. It activates when the magnets move across it's surface, but only in one direction. So if you have to pedal backwards to get it to activate, then you just need to flip the sensor 180 degrees, and then it'll activate when you pedal forwards.
If you really don't believe me I'll make you a video and upload on YouTube to demonstrate
Yes I'm getting power pedalling backwards but not forwards. D'oh! I'm not sure about zero power levels. Thanks D8veh. So you're saying this disc needs to be mounted on the right of the bike.You've fitted the magnet disc the wrong way up for that side. If it has a single hall sensor in it, it will still give power if you pedal backwards. Double hall sensor ones are handed, so only work on the right side unless it's a left hand PAS, which yours isn't.
Do you get power when you pedal backwards on any level but zero on the display?