81forest said:Same here, waiting for an update! Probably should just buy one so lingbei knows I’m serious
ScooterMan101 said:eye,
What parts of that motor can have some metal machined off for lighter total weight ?
What parts of that motor can be made from milled/machined aluminium billet for even more weight savings ?
dojrude said:What parts of that motor can have some metal machined off for lighter total weight ?
What parts of that motor can be made from milled/machined aluminium billet for even more weight savings ?
Uturn said:Now , what parts can be machined to loose weight?
> Install a TSDZ2 instead, it weighs less, 3.6kgs I think. (a smaller motor with more reduction)
> Install a torque sensing bottom bracket, a torque capable controller, and a hub motor: Much less weight.
A small hub motor is around 2.00 kgs, add the electronics and you'll see 2.2 kgs (minus your old hub).
Our flexible OpenSource firmware for TSDZ2 unlocks the max voltage and current values of TSDZ2 (user can configure them in realtime on the LCD!!), meaning it can now be optimized for strong power. And soon we will add a temperature sensor to the motor, were we can read temperature value on LCD and motor controller will reduce the current when motor get to hot, meaning we will be able to push strong current to motor for small periods of time (beyond the 18 amps limit).Uturn said:Now , what parts can be machined to loose weight?
> Install a TSDZ2 instead, it weighs less, 3.6kgs I think. (a smaller motor with more reduction)
casainho said:Our flexible OpenSource firmware for TSDZ2 unlocks the max voltage and current values of TSDZ2 (user can configure them in realtime on the LCD!!), meaning it can now be optimized for strong power. And soon we will add a temperature sensor to the motor, were we can read temperature value on LCD and motor controller will reduce the current when motor get to hot, meaning we will be able to push strong current to motor for small periods of time (beyond the 18 amps limit).Uturn said:Now , what parts can be machined to loose weight?
> Install a TSDZ2 instead, it weighs less, 3.6kgs I think. (a smaller motor with more reduction)
Also, seems that an online shop may soon start selling TSDZ2 with our flexible OpenSource firmware.
You dont have to machine anything to loose weight from the bike...ScooterMan101 said:1 to 2 kilo's makes a big difference when you have to
1) move the bike through many doors, hallways in the apartment complex and through around many corners and doors to where the bike is stored .
2 ) makes a big difference when you have to lift it up onto a bike rack. car and / or bus rack and you have a back injury .
3) anytime you go up a steep hill, even 1 kilo more weight makes a big difference,
4) when loosing about as much body weight a parson can and still be healthy, it is then time to take off unnecessary weight off the bike.
5 ) go and look at the video's from this years Eurobike Convention , you will see complete e-bikes that weigh only ... 17-18 kilo's !!
So you see, you are wrong . A e- bike can be made to be light weight,
This has just been proven by some of the bikes at this years Eurobike !
Now , What parts can be machined to loose weight ?
dojrude said:I know they're ex Bafang engineers, but could they come up with a name any more similar to BBS02? :lol:
Eyebyesickle, you were going to do a review previously. Did that ever get posted? Would love to read it.
You mention further refining the torque sensor. Does that mean it's still not right in comparison to the TSDZ2 for example and still working more like a cadence sensor?
And one last question, what's the display model number? Looks different from the C300 and C600 that others have received.
Thanks.
eyebyesickle said:Torque sensor is not as sophisticated as the TSDZ2, so it's more of a cadence sensor, but different and IMO better than the BBS02... Plus it's still quiet as the BBS02 so that is a leg up on the TSDZ2 as well...
So, this motor uses just the same electric power as TSDZ2 (52V * 18 Amps) so the output mecanical energy on the wheel is just the same as TSDZ2!dojrude said:eyebyesickle said:Torque sensor is not as sophisticated as the TSDZ2, so it's more of a cadence sensor, but different and IMO better than the BBS02... Plus it's still quiet as the BBS02 so that is a leg up on the TSDZ2 as well...
This is slightly worrying considering it's advertised as a torque sensor.
Starting to think I might just be better getting a TSDZ2 with overdrive or a BBSHD and experimenting with the various programming profiles that are available.
I think the new firmware has given the motor new life. (...) it feels much more responsive and actually gives you more power as you spin out instead of dropping off like the original firmware. That is what I wanted so it now feels more like the Bosch motor.
In fact the old firmware would feel like you are hitting a brick wall the faster you peddle but with this firmware it feels like a breath of fresh air. The faster you want to go the more it helps you. When I got right near the end and still had some battery left I pumped the power up to 550W and was able to ride comfortably at 38km/hr with little effort. I would not have been able to do this with the old firmware with a battery that was so low.
I am trusting on the developments we did and also on the feedback from that experienced user. You see, that user has a EBike with a BOSCH motor and compared TSDZ2 to it saying: "I think the new firmware has given the motor new life. (...) That is what I wanted so it now feels more like the Bosch motor." and it should also be comparing apples to oranges as TSDZ2 should be much more weak, right??eyebyesickle said:It's good to analyze numbers, but also it is important that you actually test a unit for yourself to speak too much on it IMO, and remember I'm not comparing to your own developed firmware Casianho, that is not readily available to the public - to be fair... (Let's not make this a third firmware thread ;D, hahahah I was just defending that topic in the other thread lol) and also this motor is much more quiet and doesn't have any glitches or problems at low end/speed etc... So it's kind of apples to oranges for comparing like that...