Search found 3517 matches

by motomech
Feb 13 2021 12:21am
Forum: EBike General Discussion
Topic: minimizing required maintenance - tips with or alternatives to mountain bike suspension systems?
Replies: 6
Views: 224

Re: minimizing required maintenance - tips with or alternatives to mountain bike suspension systems?

Plus, we put more use and abuse on ebikes than standard mountain bike parts are designed for. Sorry, can't let that go unchallenged. So you are saying street riding an Ebike is harder on suspension pieces than what serious MXB riders do?? Do you do 6 ft drop-offs on the street? To keep my marzocchi...
by motomech
Feb 12 2021 11:33pm
Forum: EBike Technical
Topic: 350W Jump Bafang front hub motor+wheel+tire+brake $45@BCH
Replies: 18
Views: 622

Re: 350W Jump Bafang front hub wheel+motor+brake $45@BCH

Yes, FM G020.350 and SWX02 are the same motor. Seems like some folks conflated it w/ the BPM in the original threads. but it is a "big" mini motor. One thing is, the motor speed listings for the BPM don't apply to this motor. Why, don't know, it's just one more "mystery of the East&qu...
by motomech
Feb 12 2021 1:13am
Forum: EBike Technical
Topic: 1000w upgrade ? or new kit ?
Replies: 13
Views: 391

Re: 1000w upgrade ? or new kit ?

"...more power." and "...push the motor harder." What's that mean? Do you want a higher top speed or to charge up the steepest hills, or both? I believe your motor is a direct drive and they like Volts. Use the voltage that will get you to your desired top speed. Some increase in...
by motomech
Jan 25 2021 2:40pm
Forum: EBike General Discussion
Topic: Giant Trance 3: How is this for a powerful conversion?
Replies: 15
Views: 516

Re: Giant Trance 3: How is this for a powerful conversion?

My Motobecane linked below is the same bike I bought from BI.. I payed $799 and although sold as a 'scratch and dent", arrived w/ only some minor scuffing on the frame down-tube. The components like the shifters, crank, gearsets, brks., etc were all top of the line (in '11) and easily added up ...
by motomech
Jan 25 2021 2:27pm
Forum: EBike General Discussion
Topic: Best Kit Parts available on Amazon
Replies: 10
Views: 322

Re: Best Kit Parts available on Amazon

If I can get a flat 10-15 miles at 20-25mph on a $1k budget, I'd be impressed. It's doable. IMO, this is the best value kit on Amazon; https://www.amazon.com/EBIKELING-Waterproof-Electric-Bicycle-Conversion/dp/B07MJRVTL2/ref=sr_1_2?crid=3P28M6ZCIY9BL&dchild=1&keywords=ebikeling+conversion+k...
by motomech
Jan 21 2021 4:59pm
Forum: EBike Technical
Topic: Controller shunt mod questions etc.
Replies: 8
Views: 352

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: EBike Technical
Topic: ebike speed upgrade
Replies: 13
Views: 477

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: EBike Technical
Topic: Controller shunt mod questions etc.
Replies: 8
Views: 352

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: EBike Non-hub Motor Drives
Topic: reliable middrive for commute?
Replies: 21
Views: 853

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: EBike Technical
Topic: ebike speed upgrade
Replies: 13
Views: 477

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: EBike General Discussion
Topic: Torque Arm for hydroformed aluminum frame
Replies: 13
Views: 402

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: EBike Technical
Topic: 2WD in snow
Replies: 11
Views: 536

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: EBike General Discussion
Topic: E bike hub motors controller and tester.
Replies: 8
Views: 212

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: EBike General Discussion
Topic: E bike hub motors controller and tester.
Replies: 8
Views: 212

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: EBike General Discussion
Topic: Torque Arm for hydroformed aluminum frame
Replies: 13
Views: 402

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: EBike Technical
Topic: can this hub take 52v?
Replies: 6
Views: 241

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: EBike Technical
Topic: 2WD in snow
Replies: 11
Views: 536

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: EBike Technical
Topic: can this hub take 52v?
Replies: 6
Views: 241

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: EBike General Discussion
Topic: Is a sinewave controller healthier for a motor?
Replies: 4
Views: 299

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: 350

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: EBike Build Threads
Topic: Vintage GT Palomar BBS02 BMX Klunker
Replies: 23
Views: 3135

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: EBike General Discussion
Topic: Pas Magnets
Replies: 5
Views: 197

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: EBike General Discussion
Topic: Do I need a special machine or tool for this bearing?
Replies: 10
Views: 291

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.