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by knutselmaaster
Oct 15 2020 7:52am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

Bosch doesn't want you to repair the motor. They want you to replace it entirely so that they can have your money. The only part they provide is 1 bearing, but only in the complete motor cover so that the replacement costs for the bearing are almost $300. And don't even think that you can use old mo...
by knutselmaaster
Oct 13 2020 12:59am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

This chart comes from the Bosch training. It is Bosch that made it and their training is quite full of marketing bullshit so I cannot guarantee that it is accurate.
It is a few years old so might have changed since.
POWERS.jpg
POWERS.jpg (72.72 KiB) Viewed 297 times
by knutselmaaster
Oct 13 2020 12:40am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Bobby, surely you must work at XD to know exactly how many motors have been made and how many have shown problems?
If not, where is the logic in 12 broken gears equals 50% of the production?

My clients must be extremely lucky then, with 0% failure rate in 5 years...
by knutselmaaster
Oct 12 2020 5:21pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Bullit connector
by knutselmaaster
Oct 12 2020 4:56am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

They made me a 120mm (no disc) version lately, for a single speed bike. Given the width of a single speed freewheel, it seemed to me that a 5 speed freewheel would easily pass in a 130mm frame. The disc version of the motor is about 10mm wider so it might be possible, but it will be just. Stretching...
by knutselmaaster
Oct 10 2020 3:42am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

That someone doesn't understand the workings of the system. There is no way to put fuses between the motor and the controller. And your battery should be equipped with a descent BMS with short circuit protection and a fuse already. If it hasn't got a good BMS, I strongly advise to change the batter...
by knutselmaaster
Oct 09 2020 3:50pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Bobby, please tell me where there would be an advantage for me as a reseller to share my experience with this product to users that already bought it (elsewhere)? My motivation to help is just that; I want to help out others in this community in the same way other people in here helped me before. Yo...
by knutselmaaster
Oct 09 2020 1:07am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

That someone doesn't understand the workings of the system. There is no way to put fuses between the motor and the controller. And your battery should be equipped with a descent BMS with short circuit protection and a fuse already. If it hasn't got a good BMS, I strongly advise to change the battery...
by knutselmaaster
Oct 08 2020 12:41am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Yes it seems normal. The drag will get less once it has been in use for a while. Mind that with only the rim and no tyres, there is not much weight so the slightest drag is clearly visible.
by knutselmaaster
Sep 08 2020 6:50am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

They are momentary switches.
According to the manufacturer of the sensors, the latest versions of the motor should have some kind of compatibility in the software to speed things up.
by knutselmaaster
Sep 07 2020 12:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

cowrevenge wrote:
Sep 07 2020 5:45am
Can someone point me in the direction of how to use a gear sensor with the TSDZ2?

Can I splice it together with the ebrake so they cut off either way?
Yes you can split.
Easier is to order the Y cable with it.
by knutselmaaster
Aug 30 2020 2:25am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

111 There is a very small resistance. 222 If your spokes are in maximum "umbrella" position and still the wheel is out of center, use a smaller nut on the cassette side (watch out that the chain keeps enough clearance from the frame). You can also add washers on the left side. 333 once the axle is t...
by knutselmaaster
Aug 03 2020 1:22am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

Newbie here so please be gentle .... Converted my very standard road bike with the TSDZ2 and battery from pswpower around 6 weeks ago and delighted with the results. But has got progressively noisier until now it is an embarrasment to ride... The noise is only present when the motor is giving power...
by knutselmaaster
Jul 14 2020 12:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

Most of these motors need the spoke magnet to be very far away from the sensor to work properly.
by knutselmaaster
Jul 10 2020 12:58am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

sysrq wrote:
Jul 09 2020 6:01pm
knutselmaaster wrote:
Jul 09 2020 12:29pm
Very useful information indeed. This might be helpful also for displays that show condensation on the inside.
Changing desiccant every 12 months would be too much to ask for.
It wouldn't on hobby projects but it is impossible to do that on the "real" ebikes of my shop's clients though.
by knutselmaaster
Jul 09 2020 12:29pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

Very useful information indeed. This might be helpful also for displays that show condensation on the inside.
by knutselmaaster
Jul 08 2020 3:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

As firmware changes can alter the max rpm, it seems that the speed is limited by the controller...
One would need to take the motor out of the TSDZ2 and run it with a controller that permits it to run freely without limitation, I suppose.
I'm just speculating here though.
by knutselmaaster
Jul 08 2020 3:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

As firmware changes can alter the max rpm, it seems that the speed is limited by the controller...
One would need to take the motor out of the TSDZ2 and run it with a controller that permits it to run freely without limitation, I suppose.
I'm just speculating here though.
by knutselmaaster
Jul 08 2020 1:42pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7995
Views: 851948

Re: New "TSDZ2 Torque Sensor Central Motor"

Brushless motors generally have the highest efficiency around 85% of max rotation speed.
by knutselmaaster
Jun 28 2020 2:41pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Indeed Bonnie is the best!
by knutselmaaster
Jun 28 2020 5:50am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

I've built dozens of bikes with these motors. Never had any problems with sun gears, not even on older versions. I admit that I choose motors for my clients according to their usage and situation so this prevents breakage because of unadapted installation. If you want to be extra assured of durabili...
by knutselmaaster
Jun 01 2020 12:59pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Yes. It is just a plain old ring/spacer. It should come with the motor, but any ring that fits does the job. On your picture there is a 145mm disc brake and freewheel version of the motor, does this correspond with the actual version you have? As I stated before, the rings are just there to center t...
by knutselmaaster
Jun 01 2020 7:20am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

Lol, it looks like this: o
A round piece of metal with a round hole in the middle...
by knutselmaaster
May 31 2020 7:44am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1632
Views: 216820

Re: 2 Speed Xiongda hubmotor

It is normal that there is nothing between the inner nut and the motor on the freewheel side. On the other side, there is a thick gasket that goes a little bit inside the motor housing, pushing against the inner ring of the bearing. As all bikes are different, one often needs to play around a bit wi...