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by teslanv
Aug 30 2017 6:19pm
Forum: Polls & Surveys
Topic: What is your favorite 500W-3000W Direct Drive Hub Motor?
Replies: 41
Views: 17589

Re: What is your favorite 500W-3000W Direct Drive Hub Motor?

You don't need as much power as you think you do, unless you want to have senseless "fun". If cost is negligible, and bike handling/performance is not otherwise hindered by additional power, I say why the hell not. You don't have to use the power. - But you've got it if you want it. I can think of ...
by teslanv
Aug 28 2017 8:07pm
Forum: Items for Sale - New
Topic: Custom Motobecane Ebikes with Premium components
Replies: 6
Views: 1906

Re: Custom Motobecane Ebikes with Premium components

eflyersteve wrote:On 29er #2 - they offer a 13" frame. Can your battery and controller fit this small of a frame?
Definitely not both, and I'm not sure about even just the battery. The 13" may be a wee bit too small. Would a 26" tire size and a 15" frame work for you?
by teslanv
Aug 27 2017 1:07pm
Forum: Items for Sale - New
Topic: Custom Motobecane Ebikes with Premium components
Replies: 6
Views: 1906

Re: Custom Motobecane Ebikes with Premium components

Motobecane Upgraded.jpg
This is one I built recently, with lots of upgrades, including the 45mm DD Hub, suspension seat post, & 60V-21Ah Triangle Battery.
by teslanv
Aug 27 2017 12:42pm
Forum: Items for Sale - New
Topic: Custom Motobecane Ebikes with Premium components
Replies: 6
Views: 1906

Custom Motobecane Ebikes with Premium components

Custom Motobecane.jpg I've built a lot of ebikes the last few years, and tried many different vendors & parts suppliers. There have been lots of stinkers, and a few gems I've uncovered in my quest for the "PERFECT" ebike. Well, at least PERFECT for me. I know everyone has their own ideas about this...
by teslanv
Aug 27 2017 9:36am
Forum: Motor Technology
Topic: How can we make custom tuned ES edition motors a reality?
Replies: 32
Views: 3566

Re: How can we make custom tuned ES edition motors a reality

Samd, Andy Braidford and I have a great DD hub motor design. It's the perfect combination of light weight, power handling & heat shedding, and efficiency. The road block is that the initial batch would require a minimum order of 1000 motors to cover the cost of all the new parts development. Group s...
by teslanv
Aug 04 2017 3:11pm
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

MXUS 5000W is a whopping 13kg (28.7lbs) 55mm Magnets, 250mm dia hub $300 motor MXUS 3000W is a whopping 9.3kg (20.6lbs) 50mm Magnets, 231mm dia hub $300 motor Leaf 1500W is a whopping 7.18kg (15.9lbs) 35mm Magnets, 243mm dia hub $175 motor + $108 s/h 5mm difference in Magnet height with 8 lbs diffe...
by teslanv
Jul 30 2017 9:12am
Forum: E-Bike General Discussion
Topic: Why are more of you DIYers not in the e-bike business?
Replies: 127
Views: 9084

Re: Why are more of you DIYers not in the e-bike business?

I do the Ebike hustle, much like Henry. All out of my own garage. Mostly Kits and Custom conversions. I do best when the customer buys all the parts (From me or elsewhere), and I charge a decent price for my labor to build the bike. That labor fee usually ranges from $300 for really simple installs ...
by teslanv
Jul 25 2017 9:40pm
Forum: Items for Sale - New
Topic: Sine Wave Controllers 6FET/12FET/18FET
Replies: 25
Views: 6538

Re: Sine Wave Controllers 6FET/12FET/18FET/24FET

jerome_speedy wrote:I'm not located in North America, and I could not complete the order...
Tell me if I can still buy the controller from you, thanks !
I limit sales to North America.
by teslanv
Jul 24 2017 7:29pm
Forum: Items for Sale - New
Topic: Sine Wave Controllers 6FET/12FET/18FET
Replies: 25
Views: 6538

Sine Wave Controllers 6FET/12FET/18FET/24FET

jerome_speedy wrote:Hi,
Do you plan to sell small 6 FET Sine wave controllers ? Those 12F and 18F are much too bulky for my application (a simple electric bike)
Yes.
https://www.westcoastelectrics.com/prod ... er-60v30a/
by teslanv
Jul 22 2017 12:46pm
Forum: Items for Sale - New
Topic: Genesis V2100 - Assault & Battery
Replies: 132
Views: 34295

Re: Genesis V2100 - Assault & Battery - Illegal in all 50 St

ejonesss wrote:you say illegal how would the police even know if you are using it above the legal power?

i doubt that the police is trained on dyno'ing ebikes if they can dyno anything at all.
Based on speed alone.
Yes, I could ride it at the legal 20mph speed limit, but then what's the point. ;)
by teslanv
Jul 14 2017 6:36pm
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

markz wrote:Can you measure the spoke hole diameter and the flange width.
First page :oops: 250mm and 60mm
The Spoke Hole diameter is 4.3mm. The Spoke Circle Diameter is 250mm.

The Flange center to center spacing is 69mm
by teslanv
Jul 13 2017 3:16pm
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

Thanks for the data. Well, lets do a comparison of this beast with another beast: The QSV3 4T with it's lower 11,4kV has already only 45mOhms (self measured). The 4T- V3 with similar kV of 13,3 should have around 35mOhm extrapolated. This tells me the 5k MXUS has higher losses at given torque than ...
by teslanv
Jul 12 2017 7:05pm
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

It finally arrived! 8) Here are the test results: Bare Motor weight: 14.82 Kg (32.6 lbs.) Winding Tested: 30x3T Kv: 13.3 RPM per volt (666 RPM at 49.9 V) Kt: 0.718 Newton-Meters/Amp (0.53 Ft-Lbs/Amp) [Derived from Kv, not tested directly] Motor Km: 3.462 No Load Watts: 125 Watts No Load Current: 2.5...
by teslanv
Jul 06 2017 9:09am
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

phase wire size of 50H/55 H are at least in the power ballpark for what these will be capable of running, not spec, but peak requirements of end user 8) the mexus 3k phases are a joke, and no room for upgrade either- biggest deal breaker. i suspect the 5k will be a similar story. The MXUS 3K Phase ...
by teslanv
Jul 02 2017 11:09am
Forum: Resources & EV Related Parts and Services
Topic: Custom Torque Arms designed and fabricated
Replies: 5
Views: 2425

Re: Custom Torque Arms designed and fabricated

Add another frame to the list: Motobecane 529HT from here: http://www.bikesdirect.com/products/motobecane/mountain_bikes/529ht_29er_mountainbikes.htm Plastic Prototypes fit nicely. Fits M16 Axles and smaller. Just wait till you see the motor that this bike will be getting. :) 529HT Prototype Small.j...
by teslanv
Jun 29 2017 2:34pm
Forum: E-Bike Technical
Topic: Sourcing out 80-100mm wide rims for FatBike with 36h
Replies: 24
Views: 2243

Re: Sourcing out 80-100mm wide rims for FatBike with 36h

Just google "Origin8 DAT Pro 101 36H" or Weinmann DHL101 36H, and also "Weinmann DHL80 36H" FYI, Weinmann and Origin8 are identical rims, as far as I can tell. Do you really think I didn't "Google" it? :D Actually, I was specifically providing rim models that I know meet your requirements, in the e...
by teslanv
Jun 28 2017 11:29pm
Forum: E-Bike Technical
Topic: Sourcing out 80-100mm wide rims for FatBike with 36h
Replies: 24
Views: 2243

Re: Sourcing out 80-100mm wide rims for FatBike with 36h

Just google "Origin8 DAT Pro 101 36H" or Weinmann DHL101 36H, and also "Weinmann DHL80 36H"

FYI, Weinmann and Origin8 are identical rims, as far as I can tell.
by teslanv
Jun 28 2017 11:19pm
Forum: E-Bike Technical
Topic: Mxus 3k turbo disc brake
Replies: 9
Views: 1075

Re: Mxus 3k turbo disc brake

Can someone tell me why the mxus 3k turbo has a disc brake mount that is too close to get any caliper behind the disc and a spacer is the only way around it I can see ? If someone can slap me round the head please do. I can confirm the 3K-Turbo disc brake cover has an extraordinarily tight space fo...
by teslanv
Jun 27 2017 7:49am
Forum: Items for Sale - New
Topic: MXUS 3K Turbo (V3) 45mm Direct Drive Hub Motor
Replies: 179
Views: 48547

Re: MXUS 3K Turbo (V3) 45mm Direct Drive Hub Motor

snejky wrote:Hi. Which type of Honeywell sensor is most suitable for mxus? There is lot of types. Thanks
http://www.ebikes.ca/catalog/product/ga ... 706/id/310
by teslanv
Jun 26 2017 7:53am
Forum: Motor Technology
Topic: MXUS coming out with a 5K-Turbo motor, 55mm Magnets
Replies: 225
Views: 35408

Re: MXUS coming out with a 5K-Turbo motor, 55mm Magnets

A few of us have some samples incoming, but MXUS just told us the order was delayed due to "Paint" issues...

I guess they want them to look pretty since they know we are going to plaster tons of revealing images of them on this thread. :wink:
by teslanv
Jun 26 2017 7:50am
Forum: Battery Technology
Topic: Extremely detailed video about Using LiPo on Ebikes
Replies: 0
Views: 378

Extremely detailed video about Using LiPo on Ebikes

4i_4_DcZTWE Chapters: Introduction to LiPo: 00h:01m:00s Some nice toasted LiPo for breakfast: 00h:10m:40s Wiring Harness: 00h:16m:55s Balance Charging with an RC Balance Charger: 00h:28m:58s Bulk Charging: 00h:46m:47s Capacity Testing your packs: 01h:05m:17s Product Links: https://www.rlpower.net/ ...
by teslanv
Jun 13 2017 3:19pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 600
Views: 127288

Re: XPD: open-source keywin e-bike lab replacement

Thank you very much I was thinking on those lines I was running the 12 fet version of this controller but it was getting hot I switched to the 18 fet set up and It runs ok but I want to learn what is really going on the 12 fet program is set to 50.2 amps and phase current limit at 125 amps the 18 f...
by teslanv
Jun 13 2017 2:21pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 600
Views: 127288

Re: XPD: open-source keywin e-bike lab replacement

Thanks For getting back I am located in Ohio If I could pick your brain for a second that would be great I have a ERT 18 fet sine wave controller Do you know who makes these it came with no shunt value I am trying to get a grip on how to tune it for what I need I have a 52v 24ah battery 50 amp cont...
by teslanv
Jun 13 2017 12:37pm
Forum: E-Bike Technical
Topic: XPD: open-source keywin e-bike lab replacement
Replies: 600
Views: 127288

Re: XPD: open-source keywin e-bike lab replacement

What could be wrong with my 18Fet infineon KH618 controller. I have been succesfully flashed it with xpd-ebike program many times. Now I tried the original chinese programming software, cause I read it was more solid. The programming went fine but I accidentally turned to throttle regen on. Now whe...