Search found 35370 matches

by dogman dan
Mar 01 2021 6:25am
Forum: EBike General Discussion
Topic: Please help me critique my dream ebike.
Replies: 21
Views: 375

Re: Please help me critique my dream ebike.

I would not say breaking the cover is certain, but it sure is likely you have problems with a 5000w or more mid drive running bike chain. The solution would be bigger chain, or belt, on the left side. Likely with the sprocket or belt pulley attached directly to the rim. Not sure where you get a whiz...
by dogman dan
Feb 28 2021 6:32am
Forum: EBike General Discussion
Topic: What to do: Repair-Recell-replace battery, new kit or what?
Replies: 5
Views: 152

Re: What to do: Repair-Recell-replace battery, new kit or what?

Hmm. does the charger work? Stuck on red sounds weird. I'd look at the charger plug, with a voltmeter, and see what is going on. FWIW, broken plug on chargers usually shows a green light. Never turns red when you start a charge. Tried charging overnight? It might be in a default slow charge mode, be...
by dogman dan
Feb 28 2021 6:20am
Forum: EBike General Discussion
Topic: Please help me critique my dream ebike.
Replies: 21
Views: 375

Re: Please help me critique my dream ebike.

Your dreams kind of require a motorcycle. Perfect description of a honda 250. At least, get the rolling chassis of one to electrify. 60mph requires 60 mph motorcycle tires, unless you are doing a one set of tires per race kind of thing. NOT knocking the idea of a 40 mph or so e bike. I have had them...
by dogman dan
Feb 28 2021 6:00am
Forum: EBike General Discussion
Topic: Build pack onto and around frame tube, rather than inside?
Replies: 17
Views: 241

Re: Build pack onto and around frame tube, rather than inside?

What is the need for stealth in the USA? Most places allow a decently powered e bike. In any case, to my eye, every time I see fat looking frames I see a factory e bike. Stealth remains about the same as it was 10 years ago, hide the motor behind panniers, which have the battery inside. Then everybo...
by dogman dan
Feb 26 2021 6:48am
Forum: EBike General Discussion
Topic: What to do: Repair-Recell-replace battery, new kit or what?
Replies: 5
Views: 152

Re: What to do: Repair-Recell-replace battery, new kit or what?

What you describe is usually a no longer usable battery. But try this first. Put it on charge, charge it full. Then wait 30 min. Try to ride it around the block, or run the motor with the wheel off the ground 5 min. Then charge full again. Repeat at least 5 times. If no improvement, the battery like...
by dogman dan
Feb 24 2021 7:27am
Forum: EBike General Discussion
Topic: What are the best ways to build a two wheel hub mounts e-bike?
Replies: 13
Views: 444

Re: What are the best ways to build a two wheel hub mounts e-bike?

It trends towards more than 50%, if you are using front brakes correctly, as you dive into a corner at high speed. And you don't wheelie on acceleration, if the power is coming from the front wheel. But yes, in general, I still agree put most of your power on the front. If it was that great, motorcy...
by dogman dan
Feb 24 2021 7:15am
Forum: EBike General Discussion
Topic: White Smelly Goop
Replies: 6
Views: 171

Re: White Smelly Goop

You need that goop on the fets, where they bolt to the heat sink. RTV can be used to stick down or support something that might wiggle enough to break, like daughter boards.
by dogman dan
Feb 24 2021 7:13am
Forum: EBike General Discussion
Topic: Battery and controller
Replies: 3
Views: 89

Re: Battery and controller

No problem.
by dogman dan
Feb 23 2021 6:58am
Forum: EBike General Discussion
Topic: What are the best ways to build a two wheel hub mounts e-bike?
Replies: 13
Views: 444

Re: What are the best ways to build a two wheel hub mounts e-bike?

Actually, 2wd does make sense. Just not for traction on snow or ice. But with good traction, I could corner quite a bit faster if I could pedal up grip on the rear wheel, and then at apex, grab harder on the front wheel. This is part of why I commuted on front hub motors for so long. It was that nic...
by dogman dan
Feb 23 2021 6:45am
Forum: EBike General Discussion
Topic: Help with an e-bike for my courier job
Replies: 20
Views: 514

Re: Help with an e-bike for my courier job

Yeah, swap and go, combined with some kind of home base where you can have several batteries on a relatively fast charger. I'm going to go out on a limb here, and say go with RC lipo. Yes, its dangerous, so your charger needs an outside, fireproof place, like inside an old barbeque grill. RC lipo pa...
by dogman dan
Feb 21 2021 6:42am
Forum: EBike General Discussion
Topic: What are the best ways to build a two wheel hub mounts e-bike?
Replies: 13
Views: 444

Re: What are the best ways to build a two wheel hub mounts e-bike?

Well, with front wheel motors on any surface, the trick is not applying more power than you can handle the spin. Straight line on pavement, just a little squeak, you can romp on the power. Sandy road, typical at the stop light, one rotation of spin is easy to control. Same for wet road. But at this ...
by dogman dan
Feb 21 2021 6:24am
Forum: EBike General Discussion
Topic: Newbie rear hub drive Q's- how not to fry my motor
Replies: 14
Views: 358

Re: Newbie rear hub drive Q's- how not to fry my motor

Your original question has a really simple answer. Weigh 155 pounds, is how you not fry the motor. Actually, less than 225 will do er, assuming you, plus your bike with motor, battery, and maybe a 12 pack of beer in a pannier still weighs less than 300 pounds. You should expect problems only if your...
by dogman dan
Feb 19 2021 7:10am
Forum: EBike General Discussion
Topic: What are the best ways to build a two wheel hub mounts e-bike?
Replies: 13
Views: 444

Re: What are the best ways to build a two wheel hub mounts e-bike?

Well, for snow riding, I would not want pedal actuated motors on the bike. Id have to have very fine throttle control. One throttle can control both wheels, but I might even want a throttle in each hand for two motors. Or maybe a push button on the left hand that simply allows the right throttle to ...
by dogman dan
Feb 16 2021 6:53am
Forum: EBike General Discussion
Topic: 1000w throttled ebike that also pedals and looks stealthy?
Replies: 4
Views: 255

Re: 1000w throttled ebike that also pedals and looks stealthy?

One of the best ways to hide that you are an e bike, is the cargo bike. It does not look funny with big batteries strapped on, because you have the big panniers to carry them in. The panniers also do a great job of hiding a rear hub motor. The rest, nobody really notices, if you do a decent job of i...
by dogman dan
Feb 14 2021 6:46am
Forum: EBike General Discussion
Topic: Seeking advice for commuter e-bike setup
Replies: 21
Views: 525

Re: Seeking advice for commuter e-bike setup

I commuted 30 miles a day by e bike for 5 years, then had to retire early for illness. Went through a lot of brake pads, tires, batteries. Since you are so used to pedaling hard, its not going to matter so much which type or brand of motor you use. Lots of appeal to a good mid drive, but really, wit...
by dogman dan
Feb 11 2021 12:56pm
Forum: EBike General Discussion
Topic: Rear hub motor only spins when it's upside down
Replies: 4
Views: 202

Re: Rear hub motor only spins when it's upside down

Sometimes a sensorless controller will need a nudge, try right side up, and apply throttle while the wheel is slowly moving forward. It might work, but backward. If nothing, your problem is the usual one, a bad connection that looks good. Or more rarely, the controller won't work in sensor less mode...
by dogman dan
Feb 08 2021 2:04pm
Forum: General Discussion
Topic: There was a fire at my house today while I was not home.
Replies: 1281
Views: 250516

Re: There was a fire at my house today while I was not home.

I meant nightmares about the fire, waking up and having to drag the dogs out to save their lives. Had to relive that every night for quite some time. Both of us so lucky not to lose dogs in the fires. So many dogs of the past, typical childless couple thing, but never anything but good dreams about ...
by dogman dan
Feb 08 2021 6:29am
Forum: General Discussion
Topic: There was a fire at my house today while I was not home.
Replies: 1281
Views: 250516

Re: There was a fire at my house today while I was not home.

Nothing like 500 pounds of unconditional love eh? My St Bernards are getting old now, really old. Both around 10 years. The male is just about done with walking. Sure, he still wants to go out of the yard, but we have to be real careful not to go too far. If we go out as far as he wants, he might ha...
by dogman dan
Feb 06 2021 7:16am
Forum: EBike General Discussion
Topic: 36 or 48 V system?
Replies: 11
Views: 590

Re: 36 or 48 V system?

in general, you choose 48v because you want more speed, and more wattage, from a given amperage controller.

Your watts are limited by law (but I'd ignore that). Speed though is noticeable by the police, so the best way to keep that reasonable would be to choose 36v.
by dogman dan
Feb 06 2021 7:12am
Forum: EBike General Discussion
Topic: need help with best lifepo4 battery charger 16s/48v (58.4v)
Replies: 2
Views: 142

Re: need help with best lifepo4 battery charger 16s/48v (58.4v)

Best, will be the satiator, from Grin Technology. But best, and most affordable are definitely different things. Its fast, can adjust to anything you want to charge in a wide range of voltages, and can slow charge if you want that as well. And its waterproofed. So it can mount right on the bike if y...
by dogman dan
Feb 01 2021 6:31am
Forum: EBike General Discussion
Topic: Good starter setup for Yuba Mundo in 2020?
Replies: 15
Views: 362

Re: Good starter setup for Yuba Mundo in 2020?

Its all pretty well covered, as usual. I'll just chime in to say yes to rear wheel drive. A cheaper, direct drive hub. 36v can be ok, especially since that may save you a few $$ on the battery. This wheelie problem is only on the steepest bits, and you can just hold down that front end some with bod...
by dogman dan
Jan 30 2021 6:02am
Forum: General Discussion
Topic: la Nina rears her ugly head
Replies: 1993
Views: 142711

Re: la Nina rears her ugly head

Starting to look to me like the la nina pattern is fading. Storms not staying so far north lately. Nothing reaching this far south, and east though. We are still at about .05 inch for the year in the El Paso area. I'm just hoping we get a normal monsoon this year. La Nina last year really sucked, as...
by dogman dan
Jan 24 2021 6:49am
Forum: EBike General Discussion
Topic: Heat sinks for hub motors?
Replies: 77
Views: 1623

Re: Heat sinks for hub motors?

Back when I was running the wrong motor, I poured water on my hub every day, and used the wet rag on it so the water did not simply run off it so fast. this problem was cured not by getting a huge motor, but by getting a slightly bigger motor. I went from an Aotema, which had a slightly high rpm for...
by dogman dan
Jan 24 2021 6:40am
Forum: General Discussion
Topic: Why not heat my house w heat lamps?
Replies: 53
Views: 1405

Re: Why not heat my house w heat lamps?

Not sure if you own your house, if you do, the best way to heat your house is insulate it better. I'm lucky, live in the south, but at high altitude so we do have real cold in the winter. My house has no gas line, no propane, so its all electric. The first winter we paid out the ass for heat, it was...
by dogman dan
Jan 22 2021 6:23am
Forum: EBike General Discussion
Topic: New to this need some help...
Replies: 2
Views: 181

Re: New to this need some help...

Helps us answer better if you include a link to what you are thinking about buying. But yeah, in general, once you attach the same type connector to your new battery, it just needs to be the same voltage. The AH need not be the same, but it DOES need to be a battery made from cells of enough quality...