Search found 3485 matches

by motomech
Jan 21 2021 4:59pm
Forum: E-Bike Technical
Topic: Controller shunt mod questions etc.
Replies: 8
Views: 226

Re: Controller shunt mod questions etc.

Why don't you contact Lyen directly. It's been at least 5 years since he set-up a 22Amp 6-FET Mini Monster for me and he was very helpful. Real personlized service. I haven't seen any of his products on here for a while, but since his site is still up, I'd assume he is still in business. He set-up i...
by motomech
Jan 19 2021 7:23pm
Forum: E-Bike Technical
Topic: ebike speed upgrade
Replies: 11
Views: 281

Re: ebike speed upgrade

There's several active threads on 'bout high-speed build on this page right now.
Search MadRhino's posts and that will lead you to lot's of high-speed builds.
by motomech
Jan 19 2021 7:14pm
Forum: E-Bike Technical
Topic: Controller shunt mod questions etc.
Replies: 8
Views: 226

Re: Controller shunt mod questions etc.

First off, the obvious, don't do any modd'ing til you build and ride the bike. It may accelerate fast enough to satisfy your need for speed (That what we are talking about here, Amps. Volts is top speed). That controller has two shunts and the common dirt floor mod is to squeeze them together and &q...
by motomech
Jan 19 2021 6:43pm
Forum: E-Bike Non-hub Motor Drives
Topic: reliable middrive for commute?
Replies: 20
Views: 541

Re: reliable middrive for commute?

There really is no maintenance w/ a hub motor and for your speed and climbing requirements, a geared motor like a Bafang BPM, Mac, Ezee, etc. will do the job more reliably than a mid-drive.
Run it on 48 or 52 Volts.
by motomech
Jan 19 2021 6:33pm
Forum: E-Bike Technical
Topic: ebike speed upgrade
Replies: 11
Views: 281

Re: ebike speed upgrade

do you guys have any recommendation for my requirements? Yeah, sell that perfectly good ebike, buy a newish high quality downhill bike w/ full suspension and big brk.s. Install a really big rear hub motor like a QS250, Clyte or a Crown; https://em3ev.com/shop/crystalyte-kit/ Run it w/ a 72 Volt pac...
by motomech
Jan 19 2021 4:59pm
Forum: E-Bike General Discussion
Topic: Torque Arm for hydroformed aluminum frame
Replies: 13
Views: 320

Re: Torque Arm for hydroformed aluminum frame

Where do you get your "generic types", and are they snug? I used to order motors from BMS Battery in China and that was the time to stock up on the little stuff I like, such as TA's, left-hand, Half-twist throttles, 9-pin connectors, etc. Their Ta's are good and the stuff is dirt cheap. B...
by motomech
Jan 18 2021 1:27am
Forum: E-Bike Technical
Topic: 2WD in snow
Replies: 10
Views: 325

Re: 2WD in snow

Back to the Fred Flintstone approach. I would point out to the OP, that I use "left-hand" throttles occupying the space where the frt. chain-ring shifter was.
by motomech
Jan 18 2021 1:20am
Forum: E-Bike General Discussion
Topic: E bike hub motors controller and tester.
Replies: 8
Views: 151

Re: E bike hub motors controller and tester.

I've never had that much luck w/ "self-learning" controllers. Maybe my Karma requires doing it the hard way.
by motomech
Jan 18 2021 1:15am
Forum: E-Bike General Discussion
Topic: E bike hub motors controller and tester.
Replies: 8
Views: 151

Re: E bike hub motors controller and tester.

Asides from what AW said, the phase and Hall wire colors don't always match up. I've never used a machine to figure this out and when one looks at the # of combo.s, it looks intiminating. But it's not too bad. Assuming you have your 5V on the Hall power wires, you are only dealing w/ the yellow, Blu...
by motomech
Jan 16 2021 7:00pm
Forum: E-Bike General Discussion
Topic: Torque Arm for hydroformed aluminum frame
Replies: 13
Views: 320

Re: Torque Arm for hydroformed aluminum frame

Always a torque arm, two is even better. First off, a hose clamp doesn't care if the tubing is round or square(ish), it conforms. The way I approach TA installations is to get a pair of genaric types when I place the motor/controller order and try different positions at the first wheel fitting. Bysi...
by motomech
Jan 16 2021 12:42am
Forum: E-Bike Technical
Topic: can this hub take 52v?
Replies: 6
Views: 227

Re: can this hub take 52v?

I've had several different mini's and a couple of Ezee's and the first thing is, I wouldn't put a 5 Kg.s hub motor on the frt. Too much weight swinging around on the fork. The Bafang is 3 plus, and that's about as much as I like to use up frt. Also, the Bafang on 52 V's and even a 20 Amp controller,...
by motomech
Jan 15 2021 10:00pm
Forum: E-Bike Technical
Topic: 2WD in snow
Replies: 10
Views: 325

Re: 2WD in snow

I ran dual Cutes for almost a decade. Tried many configurations and started w/ one throttle/2 controllers and different ways to provide "differential" power. None of that really worked very well for me. In the end, I just did it the simplest way possible, 2 Batt.s, 2 controllers and 2 thro...
by motomech
Jan 15 2021 9:35pm
Forum: E-Bike Technical
Topic: can this hub take 52v?
Replies: 6
Views: 227

Re: can this hub take 52v?

I run 52 Volts thru a mini geared motor smaller than that one. It's a standard wind (D10) or a "mid-speed" rating (260RPM @ 36 V), so in a 26" whl. on 52 Volts, the top speed should be about 24 to 25 MPH (2 MPH faster than on 48 Volts). That's about as fast as a single mini can do wit...
by motomech
Dec 28 2020 1:19am
Forum: E-Bike General Discussion
Topic: Is a sinewave controller healthier for a motor?
Replies: 4
Views: 270

Re: Is a sinewave controller healthier for a motor?

The answer to the title question is no,...and yes. A number of years ago, I played around with running high power thru a MXUS geared mini. By "high power", I'm talking about 14S and 16S LiPoly (nom. 54V & 62V) and a 25A Grineon & a Lynn 22A Mini Monster, both square-wave 6 FET's. T...
by motomech
Dec 14 2020 9:54pm
Forum: Items Wanted
Topic: Hebb Front Hub Motor 36 volts/350 watts
Replies: 11
Views: 302

Re: Hebb Front Hub Motor 36 volts/350 watts

https://ebikes.ca/shop/electric-bicycle-parts/motors/mezee250f_l10.html Not cheap, but it would be way more efficient than the early V1 motor that bike came with. One advantage with replacing the Ezee w/ another Ezee, is the hub is probably the same and you could swap motor cores w/out breaking down...
by motomech
Dec 10 2020 12:10am
Forum: E-Bike Build Threads / Photos & Video
Topic: Vintage GT Palomar BBS02 BMX Klunker
Replies: 14
Views: 2682

Re: Vintage GT Palomar BBS02 BMX Klunker

Take care of those MultiStars, they are no longer available.
Of course the smaller bricks can be replaced with high-value 25C Turnigys, but the big bricks, like your 10 Ah are hard to find and cost an arm and a leg.
by motomech
Nov 28 2020 1:39am
Forum: E-Bike General Discussion
Topic: Pas Magnets
Replies: 5
Views: 185

Re: Pas Magnets

More magnets is supposed to yield a quicker response (less lag).
I've never noticed much difference w/ different counts.
by motomech
Nov 28 2020 1:36am
Forum: E-Bike General Discussion
Topic: Do I need a special machine or tool for this bearing?
Replies: 10
Views: 268

Re: Do I need a special machine or tool for this bearing?

Markz touched on it.
Freeze the brg, gently heat the cover, use the correct size socket on the outer race. You shouldn't have to strike it very hard.
by motomech
Nov 21 2020 11:50am
Forum: Items for Sale - New
Topic: BMC/MAC/Ezee clutches, composite gears
Replies: 1
Views: 198

Ezee, MAC, BMC clutches and gears

(2) V2 Sprag clutches, set of white (original V1) gears, set of Blue (composite) gears. All new, never used. $50 plus shipping. In Az.
by motomech
Nov 14 2020 12:01am
Forum: E-Bike Technical
Topic: Trying to ID an ebike motor and its controller
Replies: 7
Views: 643

Re: Trying to ID an ebike motor and its controller

Although there may be a hint of of a known model or perhaps a speed rating in these long line of characters, more often they have no meaning (at least to those of us in the West). Especially clones, of which your motor surely is (or perhaps a clone of a clone). It is a "geared" motor. Not ...
by motomech
Nov 13 2020 6:01am
Forum: Items for Sale - New
Topic: BMC/MAC/Ezee clutches, composite gears
Replies: 1
Views: 198

BMC/MAC/Ezee clutches, composite gears

(2) V2 Sprag clutches, set of white (original V1) gears, set of Blue (composite) gears. All new, never used. $50 plus shipping. In Az.
by motomech
Nov 05 2020 9:56pm
Forum: E-Bike General Discussion
Topic: Geared Hub Motor Quality
Replies: 51
Views: 1790

Re: Geared Hub Motor Quality

MXUS - what I choose. Nowhere near the numbers for Bafang, and, specifically for their small geared units, very, VERY few breakage reports. Six years, approx 15,000 miles, zero issues. I started w/ a MXUS geared over 10 years ago I got from the long gone Amped Motors and although I don't think it l...
by motomech
Sep 28 2020 5:48pm
Forum: Electric Watercraft
Topic: Total Newbie Project- Sea Kayak Propulsion
Replies: 3
Views: 559

Re: Total Newbie Project- Sea Kayak Propulsion

Those drawings of the kayak are pretty much useless. Do you have a Hobie Revolution 16 or a AI or TI model? If your Kayak doesn't have a Mirage Drive, then it doesn't have a drive-well to drop a motor into. And with the pointed bow and stern, those mounting points are out too. That only leaves a sid...
by motomech
Jul 13 2020 10:24pm
Forum: E-Bike General Discussion
Topic: Rolls Royce goes with Satoshi Nakamoto on drugs
Replies: 2
Views: 239

Re: Rolls Royce goes with Satoshi Nakamoto on drugs

They should have had Suzuka Nakamoto design it.
by motomech
Jul 10 2020 2:16am
Forum: E-Bike Technical
Topic: Rad Power hub motor bearing replacement
Replies: 19
Views: 582

Re: Rad Power hub motor bearing replacement

I've looked at other Bafang hub motors and some appear to use a considerably smaller connector. I wonder if they all have the same connector problem or if some are actually made with a connector that clears the nuts and bearing? The sm. connector is called a 9-Pin connector and comes on most every ...