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by Triketech
Aug 01 2021 2:54pm
Forum: EBike General Discussion
Topic: MAC motor worth it?
Replies: 86
Views: 5723

Re: MAC motor worth it?

Does anyone know anywhere I could find a MAC with a 6T wind? I ordered a 10T direct from MAC several years ago about the time Paul separated from EM3. Not sure how they're handling sales today, here is a website: http://www.macmotortech.com/product_detail/53621hr-7d-escooter-motor-14645997348610813...
by Triketech
Jul 27 2021 10:05am
Forum: EBike Technical
Topic: Phaserunner Vs. 40A Grinfineon (10T Gmac)
Replies: 2
Views: 154

Re: Phaserunner Vs. 40A Grinfineon (10T Gmac)

My original driver was an 18 FET Infineon Trap wave with a MAC 10T. Peak Battery Amps at 40A on either one. Did several sustained climbs at full throttle (500+ foot rises). Phaserunner Phase Current limit is 90A don't know about the Infineon was on Phase Current. Differences: Infineon had full power...
by Triketech
Jul 24 2021 2:45pm
Forum: EBike General Discussion
Topic: Geared Hub vs Mid-Drive?
Replies: 20
Views: 829

Re: Geared Hub vs Mid-Drive?

I am not particularly in love with the ICE product: The cabling to those drum brakes hangs way down, just begging a sapling stump or something to give new meaning to the model name "Adventure". The elastomer rear sus looks half-ass to me. OTOH it's simple/light and maybe Greater Minds Tha...
by Triketech
Jul 24 2021 1:42pm
Forum: EBike Non-hub Motor Drives
Topic: Basic, non-tandem, Rohloff Hub: How many watts?
Replies: 4
Views: 153

Re: Basic, non-tandem, Rohloff Hub: How many watts?

The Rohloff will work fine with a TSDZ2. On a trike can't really gear it low enough to be at risk of snapping the shearpins. On an upright the rider exerts much higher peak pedal pressure than a bent, while a bent rider has a larger angular moment of power input. The max force in torque of a TSDZ2 i...
by Triketech
Jul 20 2021 9:36am
Forum: EBike Technical
Topic: What is this weird sound from the GMAC hub motor? (video)
Replies: 4
Views: 128

Re: What is this weird sound from the GMAC hub motor? (video)

Dynamo Hum. Last time I heard that sound was from a Magic Pie that was overheated with one phase of lower inductance and resistance. The time before was in a Frank Zappa song. :) Spray a little lithium grease or WD40 on the gears and clutch while its moving and stay out of the spray - if the sound d...
by Triketech
Jul 06 2021 10:27am
Forum: EBike General Discussion
Topic: With a MAC10T, what provides is the pedelec functionality?
Replies: 13
Views: 298

Re: With a MAC10T, what provides is the pedelec functionality?

AHicks wrote:
Jul 06 2021 8:17am

Care to provide the highlights of the system you're using?
I put this together nearly 6 years ago, with over 5000 miles on it now. Updated battery & boom mount about 4 months ago.
http://www.triketech.com/Drivetrain/Pow ... AC-V2.html
by Triketech
Jul 06 2021 8:08am
Forum: EBike General Discussion
Topic: With a MAC10T, what provides is the pedelec functionality?
Replies: 13
Views: 298

Re: With a MAC10T, what provides is the pedelec functionality?

For what it's worth, I've seen a few torque sensors installed on DIY systems... but I've never seen one last very long before crapping out. It would be nice if they were as easy to install and as reliable as a cadence sensor, but so far, no. Maybe that depends a bit on the quality of installation. ...
by Triketech
Jul 05 2021 7:07pm
Forum: EBike General Discussion
Topic: With a MAC10T, what provides is the pedelec functionality?
Replies: 13
Views: 298

Re: With a MAC10T, what provides is the pedelec functionality?

... but the chainline is too close to the frame. Uh-oh.... But singlespeed should work with a centered wheel, right? One one hand, maybe there is a Pinion in my future... OTOH, just take a flyer and try a TSDZ2... hoping that the noise from the one in your video where you observed that the noise wa...
by Triketech
Jul 05 2021 1:29pm
Forum: EBike General Discussion
Topic: With a MAC10T, what provides is the pedelec functionality?
Replies: 13
Views: 298

Re: With a MAC10T, what provides is the pedelec functionality?

Installing a TSBB requires some work on the boom. Would that be limited to drilling a hole for the wire? Pretty much, along with a grommet. ICE wheels are built on center rather than offset. You'll need to look into more info on that before stringing up a wheel. An offset will work but the chainlin...
by Triketech
Jul 05 2021 10:41am
Forum: EBike General Discussion
Topic: With a MAC10T, what provides is the pedelec functionality?
Replies: 13
Views: 298

Re: With a MAC10T, what provides is the pedelec functionality?

Human input is measured with a Torque Sensing Bottom Bracket (TSBB). A few different types mine is a Thun although Sempu, Bafang and few others have begun to produce them. Thun is the most accurate (rivaling some of the $$roadie stuff) but it only measures the left side input, assuming most have sym...
by Triketech
Jul 04 2021 4:32pm
Forum: EBike General Discussion
Topic: Geared Hub vs Mid-Drive?
Replies: 22
Views: 759

Re: Geared Hub vs Mid-Drive?

Short video of MAC 10T climbing 17% grade.... http://www.triketech.com/Drivetrain/PowerAssist/MAC/MacHillClimbWeb.mp4 . That sounded fairly noisy. Or was the apparent noise an artifact of the video method? Have you ever put your MAC10T up against a Bafang 310 noise-wise? The Babang would save me a ...
by Triketech
Jul 04 2021 1:52pm
Forum: EBike General Discussion
Topic: Geared Hub vs Mid-Drive?
Replies: 22
Views: 759

Re: Geared Hub vs Mid-Drive?

A 500w rated geared motor such as a mac running on 750-1000w as measured entering the controller will easily climb that grade, with some brisk pedaling to keep its rpm close to 15 mph. A little harder if you had a stop sign on the way up that hill, but not a deal breaker. Indeed it will, and steepe...
by Triketech
Jul 02 2021 7:18pm
Forum: EBike Build Threads
Topic: Reverse eTrike Primarily For Snow/Ice As Well As All Season
Replies: 16
Views: 622

Re: Reverse eTrike Primarily For Snow/Ice As Well As All Season

You'll want the weight over the driving wheels and if possible at least 2 wheels driving. I'll toss out what might be an ideal starting platform. Greenspeed Anura would be an ideal platform. https://mk0laidbackcyclnas9c.kinstacdn.com/wp-content/uploads/2020/07/download-6-1.jpg Some folks add a motor...
by Triketech
Jun 30 2021 9:01am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

It looks to me like t-cycle.com has a couple variations on battery mounts that can go under the boom. Worth a look if you haven't been there. The original underboom mount was for rack mount package and at the time (2015) I wanted something down and dirty for testing the concept. Down & Dirty wo...
by Triketech
Jun 30 2021 8:40am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

PeteCress wrote:
Jun 26 2021 9:47pm
Triketech wrote:
Jun 24 2021 10:39am
Over the last few months a couple of jewels have surfaced in the trike market...
Besides CraigsList, where do you look and what do you search on?
Bentrider. http://www.bentrideronline.com/messageb ... y.php?f=55
by Triketech
Jun 30 2021 8:34am
Forum: EBike General Discussion
Topic: 750-Watt Limit in USA: How Relevant?
Replies: 25
Views: 636

Re: 750-Watt Limit in USA: How Relevant?

Enforcement of e-Bike laws are not an economically viable civic investment. Bafang BBS02 is rated at 750 watts "Continuous", but on a full power demand will deliver 1350 watts Peak for a few seconds than taper off. Most drives state the Continuous rating although I've seen some with peaks ...
by Triketech
Jun 24 2021 10:39am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

Chalo wrote:
Jun 22 2021 10:48am

I guess they wanted it to average out at okay quality and reliability?
Not sure. The seller has a few nice trikes.

Over the last few months a couple of jewels have surfaced in the trike market, this is one of them.
by Triketech
Jun 22 2021 10:29am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

Here is a sweet trike for sale with TSDZ2 & Rohloff...

Image

http://www.bentrideronline.com/messageb ... p?t=156158
by Triketech
Jun 22 2021 10:19am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

Watts Up? To determine watts requires velocity. I plugged in 10 MPH. This returns only the power in Watts consumed by gravity for the climb; not the rolling or aero friction. Speed is linear can double the Watts for 20 MPH. Of course aero drag not included which at 20 MPH would be in the 250-300 wat...
by Triketech
Jun 21 2021 7:38pm
Forum: EBike General Discussion
Topic: Geared Hub vs Mid-Drive?
Replies: 20
Views: 829

Re: Geared Hub vs Mid-Drive?

I'm just approaching 6 years and 5000+ miles on an HPV Scorpion FS26 assisted with a MAC 10T Geared Hub, Phaserunner Driver, CA3 Computer, and Thun Torque Sensing BB. No issues other than burning out a battery. I have a couple of these and recently had it apart; gears/clutch in fine shape. I run 35A...
by Triketech
Jun 20 2021 11:01am
Forum: EBike General Discussion
Topic: How many watts do I need?
Replies: 29
Views: 859

Re: How many watts do I need?

500 watts for a Mid Drive. You'll lose the front derailleur; I've managed to add one with a fat bike Der but it adds more offset. At 500 watts you can run a cassette with 3 speed internal safely - or any 8 speed and Rohloff. Rohloff is good to about 750 watts. Both TSDZ and BBS02 drives can be easil...
by Triketech
May 07 2021 8:43am
Forum: EBike Technical
Topic: Do some motors have more/less torque with the same power levels?
Replies: 36
Views: 1079

Re: Do some motors have more/less torque with the same power levels?

It's an interesting off topic and I Dunno - Gremlins? How about how fast you are actually going, I assume the 36V is slower so do you go at the same speed up a steep hill on the 48V? If you zoom ahead and keep the 48V at a more efficient speed then stop and wait for the other cyclist on the 36v who...
by Triketech
May 05 2021 5:19pm
Forum: EBike Technical
Topic: Do some motors have more/less torque with the same power levels?
Replies: 36
Views: 1079

Re: Do some motors have more/less torque with the same power levels?

If both are the same MAC 10T but driven with different voltages, it will be partly the controller or wiring. Copper losses would be greater for higher current due to lower voltage to maintain the same overall power. Solution thicker wire for the 36V motor? 15-20% seems a lot though and the motor ge...
by Triketech
May 04 2021 10:08am
Forum: EBike Technical
Topic: Do some motors have more/less torque with the same power levels?
Replies: 36
Views: 1079

Re: Do some motors have more/less torque with the same power levels?

Factor your missing in this is that the bike is geared to the same top speed/no load rpm... so the 'wheel speed' kv (or kQ) of the motor ends up being the same, hence the torque produced at the wheel also ends up being the same, even for 2 motors with different kV/kQ. Think a 10kV motor on a 100V p...
by Triketech
May 03 2021 11:31am
Forum: EBike Technical
Topic: Do some motors have more/less torque with the same power levels?
Replies: 36
Views: 1079

Re: Do some motors have more/less torque with the same power levels?

Basic electronics tells us that winding counts will impact torque and voltage constants. Voltage Constant isn't the battery voltage its the voltage level a motor produces over a given RPM range. Torque Constant is the amperage required to produce a given level of torque. Both are generally linear Co...