Search found 344 matches

by Triketech
Jun 27 2020 1:07pm
Forum: E-Bike General Discussion
Topic: Direct Drive Motors-Internal or External Controllers?
Replies: 8
Views: 289

Re: Direct Drive Motors-Internal or External Controllers?

Internal vs external depends a bit on the hub. All internals tend to reach scaleback temps a little earlier, some more than others. Golden motors Magic Pie and Magic Pie Edge have included a clever forced air cooling and have done a pretty good job with isolating heat transfer conductive and convect...
by Triketech
Jun 22 2020 10:56am
Forum: E-Bike Technical
Topic: GMAC on a new Mountain Bike?
Replies: 10
Views: 392

Re: GMAC on a new Mountain Bike?

We've been running MAC10T's with well over 3500 miles on each of them on trikes. Gears & clutch still in great shape, despite pushing them sometimes for sustained 1500 watt runs. I've heard some issues in the past with geared hubs on mountain bikes that get some airtime with the wheels. Not sure if ...
by Triketech
Jun 10 2020 10:16am
Forum: E-Bike General Discussion
Topic: eZee vs MAC? Your thoughts?
Replies: 33
Views: 902

Re: eZee vs MAC? Your thoughts?

Triketech...I used two of these hose clamps when I hung my 14s4p battery on the bottom side of my down tube: https://www.mcmaster.com/catalog/126/334/ McMaster is my "Engineering Mall", I've had an account for many years now. Here's an early image of what I'm planning. http://www.triketech.com/imag...
by Triketech
Jun 09 2020 11:44pm
Forum: E-Bike General Discussion
Topic: eZee vs MAC? Your thoughts?
Replies: 33
Views: 902

Re: eZee vs MAC? Your thoughts?

FWIW, I'd recommend Mobil SHC 100 grease in a MAC if you have it apart. Not worth opening the motor to change the grease IMO. I got the SCH 100 recommendation from the engineers at Mobil. Same as Mobil 28 except it has a lithium soap thickener instead of a clay thickener that is in the Mobil 28. Ti...
by Triketech
Jun 09 2020 9:25pm
Forum: E-Bike General Discussion
Topic: eZee vs MAC? Your thoughts?
Replies: 33
Views: 902

Re: eZee vs MAC? Your thoughts?

Just in case I haven't mentioned it, the MAC will produce more torque per amp than any motor currently available which means better acceleration than any motor available :wink: ...that is why I am a huge MAC fan. Sure. torque per amp will be very high on any very slow winding motor. An equivalently...
by Triketech
May 25 2020 12:24pm
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 39
Views: 700

Re: Would like to make an eTrike less prone to tipping over

Sun makes a variety of trikes from upright to recumbent in both delta and tadpoles. It would help to know which one you're choosing. As for stability, mount the battery low with about 5-6" ground clearance as close to the centerline front-rear as possible. May need to offset a bit to clear chainline...
by Triketech
May 18 2020 10:18am
Forum: E-Bike Non-hub Motor Drives
Topic: Rohloff: torque limit issues
Replies: 9
Views: 339

Re: Rohloff: torque limit issues

Program the Bafang to 18A rather the 25A peak and you should be fine.

Shear pins are not a roadside fix without a vise.
by Triketech
May 17 2020 11:15am
Forum: E-Bike Non-hub Motor Drives
Topic: Rohloff: torque limit issues
Replies: 9
Views: 339

Re: Rohloff: torque limit issues

Assume a powerful mid-drive, at least 1000W rated, 3-5000W peak driving the pedal drivetrain at the BB, capable of shearing those pins at 130 N.m Absolutely. The BBS02 at 750 watt/25A setting is a stretch and with full throttle off the line along with hard pedaling will sheer the pins; maybe not th...
by Triketech
May 17 2020 12:27am
Forum: E-Bike Build Threads / Photos & Video
Topic: scorpion fx
Replies: 24
Views: 1614

Re: scorpion fx

Nice ride!

We've got a pair of Scorpion FS26's with MAC power. Getting to the time of year that we either have to ride in the evening or early morning at sunrise.

A few pics on this page:
http://www.triketech.com/Drivetrain/Pow ... AC-V2.html
by Triketech
May 07 2020 12:44am
Forum: E-Bike General Discussion
Topic: Question about making recumbent e-trike
Replies: 21
Views: 580

Re: Question about making recumbent e-trike

You will want a good suspension system and long wheebase, HPV FS26 or Azub Ti Fly. Just like on a bike speeds over about 30 mph on bumpy roads are pretty unstable. I ride an HPV FS26 with a 1500 watt MAC and its pretty stable on 50 mph downhill runs. Bike tires aren't designed for speeds above 50 mp...
by Triketech
Apr 11 2020 11:31pm
Forum: E-Bike General Discussion
Topic: Why are geared motors worse than direct drive for climbing hills?
Replies: 55
Views: 2203

Re: Why are geared motors worse than direct drive for climbing hills?

2. This one is harder to explain, but basically, the more resistance you have on a motor as a percentage of you power, the more heat you generate. So all motors if clamped to stand still will eventually melt given enough power. So say your hill (well, you and your bike on the hill) is creating a 20...
by Triketech
Mar 31 2020 10:23am
Forum: E-Bike General Discussion
Topic: E-Trike Design: Balloon Tires vs Dedicated suspension
Replies: 36
Views: 1106

Re: E-Trike Design: Balloon Tires vs Dedicated suspension

Flexible halfshafts will be the big challenge. If anything was suspended on a Delta Trike, I think its probably more practical to keep a live axle with long trailing arms mounted just behind the Bottom Bracket and a panhard rod for lateral stability. Or just go with Fat tires. They do improve the ri...
by Triketech
Mar 10 2020 9:20pm
Forum: E-Bike General Discussion
Topic: Efficiency test Geared vs Direct Drive Hub motors
Replies: 43
Views: 2299

Re: Efficiency test Geared vs Direct Drive Hub motors

Efficiency of a BLDC (or any electric motor) drops at low speeds. At 0 RPM no matter how much power you throw at it above 0 Watts, the efficiency is..........Zero. Bike wheels don't rotate all that fast; indeed a 20" rolls faster than a 26" but we're dealing with what, 150-300 RPM typically? Efficie...
by Triketech
Oct 19 2019 11:16pm
Forum: E-Bike General Discussion
Topic: Reliability - Are there numbers?
Replies: 20
Views: 1530

Re: Reliability - Are there numbers?

3500 miles on a MAC 10T. No problems.
by Triketech
Oct 12 2019 10:32am
Forum: E-Bike Technical
Topic: Controllers compatible with Mac 10t @ 48V
Replies: 11
Views: 1138

Re: Controllers compatible with Mac 10t @ 48V

Jatem wrote:
Sep 12 2019 2:46pm

Any chance I could hear an audio clip of the Mac running with phase runner?
Sure.
http://www.triketech.com/Drivetrain/Pow ... imbWeb.mp4
by Triketech
Sep 12 2019 8:31am
Forum: E-Bike Technical
Topic: Controllers compatible with Mac 10t @ 48V
Replies: 11
Views: 1138

Re: Controllers compatible with Mac 10t @ 48V

Phaserunner plays well with MAC10T.

Below 200 watts it's silent.

200-500 watts it's audible about the same sound as knobby tread tire.

35 Amp limited on mine no problems other than cooking an Anderson connector ( motor phase).
by Triketech
Sep 08 2019 8:17am
Forum: E-Bike Technical
Topic: Phaserunner error codes and connectivity issues
Replies: 3
Views: 454

Re: Phaserunner error codes and connectivity issues

2 flashes - pause - 2 flashes - pause, continuous. Shut off overnight rides fine. No manual and sparse 4G at the time. That was after climbing Palo Duro park an 1100 foot ascent over 5 miles with 10% grades in long switchbacks. Burn rate was about 1000 watts for about 20 minutes. Phaserunner base fe...
by Triketech
Aug 05 2019 10:00am
Forum: E-Bike General Discussion
Topic: Hub motor industry dying?
Replies: 270
Views: 17403

Re: Hub motor industry dying?

Technology moves at a fast pace.

Hubmotors are where DVD'S were for video about 6 or 7 years ago. 6 or 7 years from now there will still be Hubmotors on the market but they won't be the majority.
by Triketech
Jul 04 2019 10:22am
Forum: E-Bike Technical
Topic: GMAC vs MAC and Infineon vs Phaserunner
Replies: 20
Views: 4151

Re: GMAC vs MAC and Infineon vs Phaserunner

3000 miles on a MAC 10T and Phaserunner at 52V 30A. Another 1000 miles before the Phaserunner with Infineon at 52V 40A.

That's on 65 lb trike with 180 lb rider on mountain roads. No trouble or noises or backlash. Solid.
by Triketech
Jun 03 2019 9:55am
Forum: E-Bike Technical
Topic: Perfect especifications for hills
Replies: 6
Views: 535

Re: Perfect especifications for hills

Geared hub (Mac) or middrive. Don't bother with Direct Drive.
by Triketech
May 23 2019 9:52am
Forum: E-Bike Technical
Topic: GMAC vs MAC and Infineon vs Phaserunner
Replies: 20
Views: 4151

Re: GMAC vs MAC and Infineon vs Phaserunner

Been riding a trike with MAC10T, Phaserunner & Thun a few years now. Quiet, efficient, powerful, with ideal response.

Really appreciate the clutch.

I've bought and tested over a dozen systems and played with configurations, this one is by far my favorite.
by Triketech
Apr 01 2019 10:44am
Forum: E-Bike Technical
Topic: Yet Another E-Trike
Replies: 11
Views: 784

Re: Yet Another E-Trike

Sounds like quite a beast. We added a MAC 10T to our Scorpions a few years back, made the ascents far more enjoyable in the mountain region we live in. Been playing with the design of a new stealth tadpole to ride in areas assist is verboten. Inboard rocker arm front, boom mounted Rohloff, power sys...
by Triketech
Apr 01 2019 10:30am
Forum: E-Bike General Discussion
Topic: Fat Tire Folding Ebikes
Replies: 5
Views: 1057

Re: Fat Tire Folding Ebikes

Bought a Sonders fat folder used last week. Also have a pair of Scorpion trikes with MAC 10 T motors.

Sonders makes a great product two thumbs up. Rode it over the London Bridge and put about 20 miles on it last weekend in Lake Havasu both on and off road. Excellent all purpose machine.
by Triketech
Feb 10 2019 11:29am
Forum: E-Bike Technical
Topic: Acid flux on 18650s
Replies: 6
Views: 590

Re: Acid flux on 18650s

RMA rosin mildly activated < 10% zinc chloride.

Tooth brush with ethanol. Done.