Search found 460 matches

by RTIII
Oct 12 2017 12:19am
Forum: E-Bike Technical
Topic: "48V" DC - DC converter cut-off voltage question
Replies: 12
Views: 932

Re: "48V" DC - DC converter cut-off voltage question

I'm running this one: https://www.amazon.com/gp/product/B0151BF6DI/ref=oh_aui_detailpage_o07_s01?ie=UTF8&psc=1 6-60 volt input. 60watts. Waterproof and shock resistant. Thank you, wturber, that's a possibly better unit than I was thinking of for TWO reasons: 1) Will get me home with lights, eve...
by RTIII
Oct 11 2017 4:36pm
Forum: E-Bike Technical
Topic: "48V" DC - DC converter cut-off voltage question
Replies: 12
Views: 932

Re: "48V" DC - DC converter cut-off voltage question

Also wanted to comment that while 18650's are rated for AH using discharge down to 2.5V per cell, no one really runs them that low. The motor controller usually shuts off around 3V/cell (~40V) for a 48V battery. The Battery BMS is also often set for similar levels. So, you're saying the 40V cutoff ...
by RTIII
Oct 11 2017 4:35pm
Forum: E-Bike Technical
Topic: "48V" DC - DC converter cut-off voltage question
Replies: 12
Views: 932

Re: "48V" DC - DC converter cut-off voltage question

Order in the next 1.5hrs and you can have by Friday. https://www.amazon.com/DROK-Numerical-Converter-Regulator-Stabilizer/dp/B01MSJQAKY/ref=sr_1_3?ie=UTF8&qid=1507754228&sr=8-3&keywords=60v+dc+converter OK, that "answers the question" a different way - by side-stepping it. But...
by RTIII
Oct 11 2017 3:26pm
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4617
Views: 857046

Re: Cycle Analyst V3 preview and first beta release

teklektik wrote:
RTIII wrote:Is there any version of Cycle Analyst that captures cadence data?
Since the CA3 is the only CA with PAS inputs, it's the only candidate :D
Thanks, teklektik, I'll be reading up!
by RTIII
Oct 11 2017 3:18pm
Forum: E-Bike Technical
Topic: "48V" DC - DC converter cut-off voltage question
Replies: 12
Views: 932

"48V" DC - DC converter cut-off voltage question

I'm planning to add a DC-DC converter to at least one if not both my TSDZ2 48v bikes so that I can add robust 12v lighting for night riding - including lighting for my trailer - and after spending hours looking at options, it looks like I've got really two options that financially make sense, but th...
by RTIII
Oct 10 2017 8:43pm
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4617
Views: 857046

Re: Cycle Analyst V3 preview and first beta release

Is there any version of Cycle Analyst that captures cadence data? I'm not interested in control of any kind, so maybe the V3 is the wrong product family for me... I'm hoping to find something that can give me A, V, speed, and cadence in a consistent data set so I can compare between two bikes and al...
by RTIII
Oct 10 2017 7:58pm
Forum: E-Bike General Discussion
Topic: Speedict Ebike - Anybody seen/tried this?
Replies: 1357
Views: 180662

Re: Speedict Ebike - Anybody seen/tried this?

Holly cow! I can't read through 53 or so pages of comments here now - I haven't a week to spend! :D ... In fact, I've spent a whole day or more without much success at finding what I'm looking for... I have two ebikes wtih the Tongsheng TSDZ2 (a torque-sensing mid-drive), both "48V", one c...
by RTIII
Oct 10 2017 1:16pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

Here's the charger following the top-up after the trip: https://endless-sphere.com/forums/download/file.php?id=222863 So, that's 0.49 amp hours per mile, or, 2.05 amp hours per mile! Not bad, methinks! Now, it's true, back in June when I was in good shape (before I injured my leg), riding my Legran...
by RTIII
Oct 10 2017 12:40am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

So, I was going to chime in with another "me too!" about Eye being a good vendor, but I'd just gotten a replacement VLCD-5 from him for one that didn't work right and hooked it up and the damned thing - new one - didn't work at all!! ... OK, by "at all," I mean that the throttle ...
by RTIII
Oct 09 2017 11:53pm
Forum: E-Bike Technical
Topic: Amberwolf's Raine Trike
Replies: 80
Views: 10872

Re: Amberwolf's Raine Trike

Drill a hole where you want the axle to end up and then cut slots to the inside tangent... That would be the preferred method, but: In steel like this, I don't have bits that can drill thru it (more than once per bit, anyway). Thin steel (or really soft, like I can bend with hand tools) I can do, w...
by RTIII
Oct 09 2017 12:40pm
Forum: E-Bike General Discussion
Topic: Marin San Rafael Euro frame-up TSDZ2 powered build
Replies: 89
Views: 10922

Re: Marin San Rafael Euro frame-up TSDZ2 powered build

I got some interesting feedback from a reseller who has 100 more TSDZ2 motors in route. He refuses to sell throttles, and sees no need for integrated brakes since the instant the rider stops pedaling the motor stops. He thinks the throttle is a mistake for this motor. I will be removing the brake/t...
by RTIII
Oct 09 2017 12:27pm
Forum: E-Bike Technical
Topic: Amberwolf's Raine Trike
Replies: 80
Views: 10872

Re: Amberwolf's Raine Trike

... Hadn't seen this thread! ... Small suggestion next time you want to do something like making dropouts in a plate of steel: Instead of cutting slots like this then trying to cut away the inner part as you did here: https://endless-sphere.com/forums/download/file.php?id=222763 Drill a hole where y...
by RTIII
Oct 08 2017 11:15am
Forum: E-Bike General Discussion
Topic: Marin San Rafael Euro frame-up TSDZ2 powered build
Replies: 89
Views: 10922

Re: Marin San Rafael Euro frame-up TSDZ2 powered build

Finally got the kickstand sorted - that stupid stick type that most US bikes have just wasn't cutting it... Now, here's a real kickstand: I just made two flat bar mounts for the kickstand, one per side, drilled a few holes, applied a little paint and... YES, I welded in some short bits of M10 to sim...
by RTIII
Oct 07 2017 3:15pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 1029
Views: 170758

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCar

Better take the fork out and relubricate adn check for damage. If I read you right, you have to cut and reweld to fix this?! :shock: ...I know resources are light, but I'd do something about that if I were you! A traditional stem should work, just put a very short section of tube in its yoke and you...
by RTIII
Oct 04 2017 2:15pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

oh no....first of all: many thanks for the fast reply...:-) i got myself extra long crank arms, just received them today....i can't believe this :shock: i cannot return them anymore and they were expensive and also i want to have longer crank arms...i will have to find a different solution....shoot...
by RTIII
Oct 03 2017 3:05pm
Forum: E-Bike General Discussion
Topic: Marin San Rafael Euro frame-up TSDZ2 powered build
Replies: 89
Views: 10922

Re: Marin San Rafael Euro frame-up TSDZ2 powered build

:) I'm not sure if the Btfsplk reference is flattering or not, but I'll just presume it is! Nice work! Neither flattering or demeaning, it just seems you have a black cloud following you around to trash your already beat up body. Hoping th3 sun shines through and you heal fall free for as long as i...
by RTIII
Oct 02 2017 11:47am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

Hi RTIII, I think that Speady was not saying the one-way bearing was supporting the rider's weight, he was using the rider's weight multiplied by the length of the crank arm to calculate the torque that would be applied to the one-way bearing. If he is correct that the pedalling torque goes through...
by RTIII
Oct 01 2017 5:43pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 1029
Views: 170758

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCar

The breaker's own connection point is still a weak point, being simple screw-tightened clamp contacts ?? Presuming the wire end is "tinned" (soldered), it's likely the very best connection you can possibly have except having a soldered connection directly. That's a big part of why it's us...
by RTIII
Oct 01 2017 4:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

[...] The one-way bearing of the main gear is still a CSK 30 P, rated 110Nm, that equals a person weighing in 65Kg standing at the edge of a 170mm crankarm, usually a pedal. That's made to fail. Hmmm... It's a clutch-bearing and it goes inside the gear wheel and its function is to engage the pedals...
by RTIII
Oct 01 2017 3:53pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

As i know all tsdz2 make big sound One of mine is as silent as the grave, the other is loud enough to hear over talk radio at full volume with ear-buds on! ... I'm wondering which one is the anomaly! I think most are fairly quiet these days, but have insufficient statistical data to feel comfortabl...
by RTIII
Sep 27 2017 12:55pm
Forum: E-Bike General Discussion
Topic: Marin San Rafael Euro frame-up TSDZ2 powered build
Replies: 89
Views: 10922

Re: Marin San Rafael Euro frame-up TSDZ2 powered build

Jeez... I'm beginning to think I have a real life Joe Btfsplk for an acquaintance! I learned another new phrase this week. "non-suspension corrected rigid fork". Now to sort how to size, and hopefully find a version with the option for V Brake AND BB7! Yes the silver is a decent silver bu...
by RTIII
Sep 27 2017 12:49pm
Forum: E-Bike Technical
Topic: Help with gearing issues on E-Bike conversion
Replies: 52
Views: 6303

Re: Help with gearing issues on E-Bike conversion

SunRace makes an 8-speed cassette in 11-40 that I've seen listed online for as little as $14. Even at twice that price it would be a swell bargain. It's called CSM 680. My shop carries the 9-speed version for $40 retail, but none of our distributors carry the 8-speed one. Thanks for the heads-up, C...
by RTIII
Sep 24 2017 1:54pm
Forum: E-Bike General Discussion
Topic: Marin San Rafael Euro frame-up TSDZ2 powered build
Replies: 89
Views: 10922

Re: Marin San Rafael Euro frame-up TSDZ2 powered build

My frame will go to paint next month (Ford 2017 Black unless I get lucky and some exotic black vehicle is in the shop for paint) and the LBS for cup fitment. I see you made a tool, but as you discovered, this is ALL news to me. I'm comfortable with most kits but have never started with a bare frame...
by RTIII
Sep 23 2017 1:06pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

So the choice between the two models is more about ( more expensive / better reliability / silence / more power and PAS ) vs ( less expensive / lesser reliability / noisier / less power and torque sensor ), which really boils down to PAS vs torque sensor, if one can leave with the randomness of tsd...
by RTIII
Sep 22 2017 9:56pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8064
Views: 871862

Re: New "TSDZ2 Torque Sensor Central Motor"

so you guys are thinking its bad batch of gears / inconsistent / tolerance +/- issue? Given how some, likely MOST are quiet and one or two are loud so people complain leads to a conclusion that either there's inconsistent production tolerances (usually called "quality control"), or an ass...