Search found 157 matches

by Retrorockit
Jun 13 2020 2:21am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

The bulge at the front of the top tube looks like it was made for the battery. It looks nice and organic. I think you were lucky to get it in there at all. I suppose you just charge it on the bike?
by Retrorockit
Jun 12 2020 9:03am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I think there is a setting for the assist to have a delay of several degress rotation. A lot of times this gets turned to 0. That is what it's there for. To keep the motor off when resting your foot on the pedal. I haven't used the OSF yet myself, but I think that's the setting you need to change.
by Retrorockit
Jun 10 2020 10:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

Regarding putting the battery under the frame. Most forks have a plastic travel stop inside the spring on one side. A piece of plastic (Nylon?) rod stuck down in there could lose a few mm of travel if needed to keep from locking up the wheel and causing an OTB situation. This would not change the ri...
by Retrorockit
Jun 09 2020 8:12am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. ... Ah okay now I understood your solution, seems like a great idea! But I don't think it...
by Retrorockit
Jun 08 2020 9:22am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. I call it the switchblade mount. https://electricbike.com/forum/filedata/fetch?id=97888&d...
by Retrorockit
Jun 08 2020 9:20am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. https://electricbike.com/forum/filedata/fetch?id=97888&d=1575484709 By drilling and tappi...
by Retrorockit
Jun 08 2020 9:02am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. https://electricbike.com/forum/filedata/fetch?id=97888&d=1575484709 By drilling and tappin...
by Retrorockit
Jun 07 2020 5:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

Hello everyone. I just bought a Mondraker Foxy full suspension and I was wondering which battery may be the best fit for those frames. In particular I think there are two options: one above the down tube (on the triangular area) or below the down tube. Which battery type did you use, if you have a ...
by Retrorockit
Jun 04 2020 1:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

The advantage ATF would have over light motor oil is it has antifoaming additives that keep air from getting churned into it. Also 5W20 is only thin (5W) at room temp. and below, as it heats up it becomes thicker (20W). If the case is getting hot then it's removing heat. I store my ebikes in the hou...
by Retrorockit
Jun 02 2020 1:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

Somewhere there is a shaft from the motor into the gearcase. It probably won't be sealed because there was just air in both sides. You might ask NexusG what happened there. Who knows may be you'll end up with an automatic drip chain oiler.
by Retrorockit
Jun 02 2020 9:56am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

ATF is thinner, and has Anti foaming properties. If you want to do this you can clean the grease out of the roller/sprag clutches also. ATF is the perfect lube for those. ATF has become the normal lube for a lot of manual transmissions, and even the final drive on fwd cars. Adding fins to the outsid...
by Retrorockit
Jun 02 2020 9:31am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

There are people doing that with overvolted hub mtors. Either ATF, or metallic colloidal suspensions (ferro fluids) that cling to the magnets. But they say the 10x higher RPM of the mid motors makes it less practical. There is a lot of improvement to be had already by filling the air gap between the...
by Retrorockit
Jun 02 2020 3:33am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

My 1500W BBSHD says 750W on the decal. It's just matter of tuning. So it's hard to say what's really going on sometimes. There's also the matter of TSDZ2 backing off power above 80rpm and other nonsense. Caisanho's tuning may find the missing power. But more power can lead to cooling and rubber gear...
by Retrorockit
May 31 2020 9:00am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

[/quote] So basically this motor is intended for utilitarian/functional use? I tried to stand on a single pedal and nothing has happened yet. The chainring is moved 2mm outboard due to second chainring which allows the crank to be tightened to 13Nm torque only + threadlock so there might be even gre...
by Retrorockit
May 31 2020 8:19am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

[youtube]https://youtu.be/jmra6UoH830[/youtube] My tsdz2 breaks off [youtube]https://youtu.be/rdSjb88jAXs[/youtube] I break my tsdz2 pedal axle for the second time. Dont do jumps with this motor, dont ride trails. Keep it on asphalt or gravel. I notice that frame has a curved downtube that puts the...
by Retrorockit
May 30 2020 5:55pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

Unfortunately the light weight,compact size, and smooth PAS does make them attractive to off road users. I certainly wouldn't want to try to pick my way through a rock garden with my BBSHD.
Wouldn't want to carry it either!
Maybe there is a market for an ISIS splined MTB axle.
by Retrorockit
May 27 2020 12:49pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

I've created the pedal axle in Fusion 360, you can view/download it here: https://a360.co/3gwHR9I The dimensions should be pretty good but an error is always possible. I set the axle diameter to 15mm instead of the 14.9mm they did. If it is made with the popper tolerance (h7 in Europe, maybe US hav...
by Retrorockit
May 25 2020 1:25am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/raw/master/TSDZ2_different_versions_axles_comparition.jpg There are 2 different shafts and the taper appears to end sooner on the narrow version. Some cranks may seat up against the end of the taper instead of seating on the flat. There are "bo...
by Retrorockit
May 24 2020 9:53am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

There are torque standards for all grades and threads of bolts, and charts that list them. https://www.fastenermart.com/files/metric_tighten_torques.pdf The suggestions I'm making can not only be applied to a replacemnet part, but incorporated into a new product. I'm a mechanic, not a machinist, or ...
by Retrorockit
May 24 2020 8:00am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: what's that sound?

Better bolts should be readily available at any decent harware or bike shop. They come in different strength ratings. 10.9 is a good metric rating. 8.8 is common, and unmarked bolts are crap. If the internal threads are damaged, a bike shop or auto mechanic should be able to drill out the damaged t...
by Retrorockit
May 23 2020 4:55pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: what's that sound?

[/quote Another thing that makes me worry: The supplied screws for the cranks are like butter. Normally those screws need to be screwed down pretty hard to prevent the cranks from wobbling. And I once had to add some more turn after a short ride and it stripped all threads from the screw. Now I'm a...
by Retrorockit
May 23 2020 4:45pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

The circlip groove could be radiused at the bottom to remove the sharp corners, or a 1/2 round groove cut and a round wire snap ring used instead. I didn't notice the snap ring groove in the photo just the fatigue fracture pattern. https://www.arconring.com/wire-snap-rings/open-closed-gap/ Then next...
by Retrorockit
May 23 2020 11:29am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

One thing that might help prevent shaft breakage is to shot peen the shaft. Cracks start at the outer surface and move in. If you compress the surface by shot peening then the surface is compressed and doesn't go into tension as the shaft flexes slightly during use. This is standard procedure for pa...
by Retrorockit
May 13 2020 7:50am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

To: Darkerside. If the wobble in the chainring turns out to be in the sprag clutch I wouldn't worry about it becasue when the sprag clutch locks under load it will center iself. If it's in the fit of the bearing bore there are Loctite type fluids for loose fit bearings that can be used for that. I'm...
by Retrorockit
May 08 2020 6:06pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7368
Views: 772689

Re: New "TSDZ2 Torque Sensor Central Motor"

[/quote] then deffinitly shorter crank arms will help you as the shorter the crank arms the less pressure you will be able to put on it, laws of mechanics. loook for the lekkie buzz bars they can be had in 165mm, or even shorter if you go for bmx crank arms [/quote] The Shimano E5000 crank arms come...