TorEddy
100 W
I'm starting off with the most recent picture of my build:
My previous bike got stolen:-(
https://endless-sphere.com/forums/viewtopic.php?f=28&t=49283
After my experience with this e-bike project, I started thinking of what I want from my next e-bike build.
Ideally I wold like something like this, but with more power. Somewhere between 1000-2000w would be sufficient.
As bikes like this is way to expensive and tops out at 350w, I will try to make something similar but more powerful myself.
My experience with my LighteningRods GNG bike, is that it's powerful, but i think it's too much fuss with cogs and belts, twisting sheets, speed control throttle, diy lipo battery with no good charging solution, old school cycle analyst, short range, too heavy, etc. All in all, a not very user friendly and maintenance free e-bike.
My main concern was ease of charging and the speed control throttle. Having to twist the throttle to make the motor catch up with my pedaling cadence, made it poor for off-road use. It was too hard to match the power input from the motor with the power input from the pedals when needing that extra power in a wheelie.
If I could use an external controller on the bosh/yamaha mid-drives, and get it up to say 1000w of nominal power, that would be a sweet setup.
As I don't think the motor is up for that power levels, and I have not seen anybody try this (maybe it's just too expensive to experiment with), I think the new e-rad / Bafang BBSHD drive on a nice full-suspension bike is the way to go.
As I really enjoyed the pas of the bosh/yamaha drives, I would like something similar on my new setup, preferably with a thumb-throttle override.
With a removable 52 volt 14 ah battery and the BBSHD taking 30amps maybe up to 40amps, it should be plenty powerful (1500-2000w peak).
http://lunacycle.com/batteries/packs/dolphin-pack-52v-11-5-13-5ah-with-charger/
My two biggest gripes with this setup would be, how to pedal assist the high rpm BBSHD, and how to implement a torque sensing PAS.
With a frame like this, I think the battery would fit, but maybe the motor will be to low because of the bent downtube.
Well, these are just my thoughts for my next project, and the BBSHD is not even on the market yet.
If I knew the pedaling cadence vs motor rpm would match, and some kind of torque sensing PAS could be fitted, I think a setup like this would be perfect.
I anybody know of a nice frame to recommend, or a way to convert the BBS speed pas to torque pas, it would be much appreciated!
Tord
My previous bike got stolen:-(
https://endless-sphere.com/forums/viewtopic.php?f=28&t=49283
After my experience with this e-bike project, I started thinking of what I want from my next e-bike build.
Ideally I wold like something like this, but with more power. Somewhere between 1000-2000w would be sufficient.
As bikes like this is way to expensive and tops out at 350w, I will try to make something similar but more powerful myself.
My experience with my LighteningRods GNG bike, is that it's powerful, but i think it's too much fuss with cogs and belts, twisting sheets, speed control throttle, diy lipo battery with no good charging solution, old school cycle analyst, short range, too heavy, etc. All in all, a not very user friendly and maintenance free e-bike.
My main concern was ease of charging and the speed control throttle. Having to twist the throttle to make the motor catch up with my pedaling cadence, made it poor for off-road use. It was too hard to match the power input from the motor with the power input from the pedals when needing that extra power in a wheelie.
If I could use an external controller on the bosh/yamaha mid-drives, and get it up to say 1000w of nominal power, that would be a sweet setup.
As I don't think the motor is up for that power levels, and I have not seen anybody try this (maybe it's just too expensive to experiment with), I think the new e-rad / Bafang BBSHD drive on a nice full-suspension bike is the way to go.
As I really enjoyed the pas of the bosh/yamaha drives, I would like something similar on my new setup, preferably with a thumb-throttle override.
With a removable 52 volt 14 ah battery and the BBSHD taking 30amps maybe up to 40amps, it should be plenty powerful (1500-2000w peak).
http://lunacycle.com/batteries/packs/dolphin-pack-52v-11-5-13-5ah-with-charger/
My two biggest gripes with this setup would be, how to pedal assist the high rpm BBSHD, and how to implement a torque sensing PAS.
With a frame like this, I think the battery would fit, but maybe the motor will be to low because of the bent downtube.
Well, these are just my thoughts for my next project, and the BBSHD is not even on the market yet.
If I knew the pedaling cadence vs motor rpm would match, and some kind of torque sensing PAS could be fitted, I think a setup like this would be perfect.
I anybody know of a nice frame to recommend, or a way to convert the BBS speed pas to torque pas, it would be much appreciated!
Tord