I'm trying to do a mid-drive conversion on a carbon frame. That means the Bafang / Tongsheng kits probably will not fit. I can always try CYC later but for now I'm trying to do the conversion for closer to $500 than $1000 (and I already have the Hailong II battery). For now, although the CYC kits look fantastic, I'll hold off on buying one and try something else.
Some of the Chinese stuff is reasonably priced at $250-400, and of course who knows if it will really work or not, but one thing that I really need is PAS for climbing technical singletrack. To give you an example, L-Faster builds a 750W mid-drive that's basically a Bafang BSS02 clone but the motor is too close to the crank axle so it probably will not fit over the bottom of the carbon downtube. They also have 350W and 250W mid-drive kits, but only with throttle.
I find that really dumb. If someone is on pavement, they don't even need a mid-drive kit, they just do an easy hub drive conversion and ride all day long on pavement with a throttle. Offroad is not the same at all as pavement. With a dirtbike, there is enough torque to power up hills with a throttle only, but as you offroaders know, e-bikes are not dirtbikes, and you still have to pedal and turn the handlebars very, very precisely up steep singletrack with obstacles. PAS in that case is 100% needed for a constant amount of wattage; maybe you will need to change cassette gears once in a while up the hill; otherwise you have consistent watts going through the rear wheel while you do what you normally do on an acoustic bike: pedal and turn according to what the terrain gives you, second by second, minute by minute. A throttle up techy singletrack would be a joke. You'd be spinning out all over the place. And ending up looking for the 'walk' function on the display.
So here's the general question: if the male/female pins are correct, can someone shop around for a display that provides PAS, hook up the PAS sensor to the inside left crank and controller, hook up the display to the controller, and one way or another (either automatically or through programming in the display) generate PAS with what came as a throttle-only kit? I tried to do with with an E-bikeling SW900 display / controller and Bafang front-hub, and PAS didn't work (throttle did work). The Bafang front hub can only take a KT-LCD3 display for PAS. One of the reasons I'm typing this today is that my KT display is dying again for a 2nd time, so I'll need to switch back temporarily to the SW900 that's been sitting in the garage for a few years. The SW900 doesn't have a lot of programming options like the KT does and that's probably why it cannot do PAS. But, for example if someone bought a throttle-only kit, and the KT display had compatible pins to that kit's controller, could they use the KT display and buy a PAS sensor, again with compatible male/female pins? Or is that question too generalized and if so, what specific examples are there for 'generating' PAS with a relatively universal display? Lastly I want to emphasize that I already have a front hub drive and will be ADDING a mid-drive to a different bike. Two ebikes not one. So really the question is for both hub and mid-drives: can you 'add' PAS to a throttle-only kit, hub- or mid-drive.
Some of the Chinese stuff is reasonably priced at $250-400, and of course who knows if it will really work or not, but one thing that I really need is PAS for climbing technical singletrack. To give you an example, L-Faster builds a 750W mid-drive that's basically a Bafang BSS02 clone but the motor is too close to the crank axle so it probably will not fit over the bottom of the carbon downtube. They also have 350W and 250W mid-drive kits, but only with throttle.
I find that really dumb. If someone is on pavement, they don't even need a mid-drive kit, they just do an easy hub drive conversion and ride all day long on pavement with a throttle. Offroad is not the same at all as pavement. With a dirtbike, there is enough torque to power up hills with a throttle only, but as you offroaders know, e-bikes are not dirtbikes, and you still have to pedal and turn the handlebars very, very precisely up steep singletrack with obstacles. PAS in that case is 100% needed for a constant amount of wattage; maybe you will need to change cassette gears once in a while up the hill; otherwise you have consistent watts going through the rear wheel while you do what you normally do on an acoustic bike: pedal and turn according to what the terrain gives you, second by second, minute by minute. A throttle up techy singletrack would be a joke. You'd be spinning out all over the place. And ending up looking for the 'walk' function on the display.
So here's the general question: if the male/female pins are correct, can someone shop around for a display that provides PAS, hook up the PAS sensor to the inside left crank and controller, hook up the display to the controller, and one way or another (either automatically or through programming in the display) generate PAS with what came as a throttle-only kit? I tried to do with with an E-bikeling SW900 display / controller and Bafang front-hub, and PAS didn't work (throttle did work). The Bafang front hub can only take a KT-LCD3 display for PAS. One of the reasons I'm typing this today is that my KT display is dying again for a 2nd time, so I'll need to switch back temporarily to the SW900 that's been sitting in the garage for a few years. The SW900 doesn't have a lot of programming options like the KT does and that's probably why it cannot do PAS. But, for example if someone bought a throttle-only kit, and the KT display had compatible pins to that kit's controller, could they use the KT display and buy a PAS sensor, again with compatible male/female pins? Or is that question too generalized and if so, what specific examples are there for 'generating' PAS with a relatively universal display? Lastly I want to emphasize that I already have a front hub drive and will be ADDING a mid-drive to a different bike. Two ebikes not one. So really the question is for both hub and mid-drives: can you 'add' PAS to a throttle-only kit, hub- or mid-drive.
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