Search found 1078 matches

by Balmorhea
Sep 22 2020 5:52pm
Forum: E-Bike General Discussion
Topic: Rear Hub Motor: Full suspension or hardtail?
Replies: 28
Views: 2691

Re: Rear Hub Motor: Full suspension or hardtail?

any suggestion for a cheap durable 68mm BB? The Shimano BB-UN52 it came with looks like it had much better days so looking for a replacement BB-UN26 is my default choice unless the customer asks for something more expensive. It seems to work as well as anything. if you go with the Microshift Advent...
by Balmorhea
Sep 22 2020 5:27pm
Forum: E-Bike General Discussion
Topic: Rear Hub Motor: Full suspension or hardtail?
Replies: 28
Views: 2691

Re: Rear Hub Motor: Full suspension or hardtail?

This is the fork I was considering but it sounds like if I pick the straight tube I no longer need the adapters right? BOLANY 26/27.5/29 inch MTB Bicycle Magnesium Alloy Suspension Fork, Tapered Steerer and Straight Steerer Front Fork (Manual Lockout - Remote Lockout) https://www.amazon.com/dp/B07X...
by Balmorhea
Sep 22 2020 4:56pm
Forum: E-Bike General Discussion
Topic: Rear Hub Motor: Full suspension or hardtail?
Replies: 28
Views: 2691

Re: Rear Hub Motor: Full suspension or hardtail?

Oh wow, hope he is ok? Anybody's guess. I hope he's doing fine and has developed other ways besides E-S to squander his time. Two questions only: Are this the adapters I need to mount a new 26” suspension fork? Cannondale Reducer Headset Integrated Headshok to 1.5’’-1 1/8’’ Tapered KP205 https://ww...
by Balmorhea
Sep 22 2020 4:19pm
Forum: Vendor Relations Corner
Topic: Very Surprising Interaction with Lyen the vendor on this site
Replies: 2
Views: 90

Re: Very Surprising Interaction with Lyen the vendor on this site

Some customers are not worth having, just like some businesses are trouble to deal with.
by Balmorhea
Sep 22 2020 3:16pm
Forum: E-Bike Technical
Topic: Do cooler motors run quicker?
Replies: 6
Views: 111

Re: Do cooler motors run quicker?

Even more practical is to say that if you're making your motor hot, you're doing it wrong. Use more motor or abuse it less.
by Balmorhea
Sep 22 2020 3:14pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 6136
Views: 337663

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Ahh ! I see a major flaw in that discussion.. ........ leaks of natural gas, a major contributor to climate change....... So, I didnt bother reading any further ! :wink: Most hydrogen used these days is steam reformed from natural gas. ???... so what are you saying here..? What is the connection be...
by Balmorhea
Sep 22 2020 2:41pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 6136
Views: 337663

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Hillhater wrote:
Sep 20 2020 11:51pm
Ahh ! I see a major flaw in that discussion..
........ leaks of natural gas, a major contributor to climate change.......
So, I didnt bother reading any further ! :wink:
Most hydrogen used these days is steam reformed from natural gas.
by Balmorhea
Sep 22 2020 2:32am
Forum: E-Bike Technical
Topic: What is this grey wire? Panasonic NUAO12C 250W mid drive motor
Replies: 4
Views: 67

Re: What is this grey wire?

Insufficient data.

Does the gray wire show a voltage to ground, or to positive, when you meter it?

If you tell us more about the bike and battery, then maybe someone here has direct experience with it and can offer help.

Photos are useful in this regard.
by Balmorhea
Sep 22 2020 2:20am
Forum: E-Bike Reviews & Testing
Topic: Why I'm pulling my Bafang BBS02
Replies: 81
Views: 19432

Re: Why I'm pulling my Bafang BBS02

IIRC I have a similar-era Sachs torpedo on there replacing it, and that has not had any problems in the months (year+?) since then, doing the same job. That's a proven reliable hub, though a little fussier to strip and rebuild than Sturmey Archer. The sliding key is fragile and easy to break when r...
by Balmorhea
Sep 22 2020 2:16am
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 88
Views: 1715

Re: Is regenerative braking really worth anything?

I don't know how much did you haul in your trailer. But you, your bike, and everything you could possibly put in there and carry on your person don't amount to as much mass as me on my bike, empty. Almost nobody does. My city isn't flat but isn't especially hilly either. I have lived and ridden in c...
by Balmorhea
Sep 22 2020 1:59am
Forum: Battery Technology
Topic: what is the consequence of non pure nickel
Replies: 16
Views: 416

Re: what is the consequence of non pure nickel

EVs can benefit from EV batteries. Give them a try, if you can. does ev means electic vehicule if yes what is the meaning of saying this? when you say cell welding equals more cell damage. I find this to be only true with soldering tin lead kind of stuff. on video i saw on youtube with spot welding...
by Balmorhea
Sep 21 2020 4:25pm
Forum: E-Bike General Discussion
Topic: Rear Hub Motor: Full suspension or hardtail?
Replies: 28
Views: 2691

Re: Rear Hub Motor: Full suspension or hardtail?

Now, for really serious FS - I gotta hold of this: Cside.jpg AWESOME!!! Literally floats over the roughest stuff... This is precisely the bike I’m building now a Cannondale 1999 Super Raven V 1000 would you mind if I ask you a few questions about the suspension adapters and the limitations of the 4...
by Balmorhea
Sep 21 2020 3:31pm
Forum: E-Bike General Discussion
Topic: a bike for my wife
Replies: 13
Views: 674

Re: a bike for my wife

I don’t know whether Radwagon is available in EU, but if so, it would be very nice to get €500 off that one.

Found:
https://radpowerbikes.eu/products/radwa ... cargo-bike
by Balmorhea
Sep 21 2020 3:03pm
Forum: E-Bike General Discussion
Topic: New project
Replies: 7
Views: 180

Re: New project

You can use a drum brake or Shimano roller brake without any metalworking. But you’ll need a new wheel. BR-IM70 (and up) roller brakes are all strong brakes from day one. Traditional drums can get there after a couple thousand miles of break-in, but they’ll always require a firmer hand, and careful ...
by Balmorhea
Sep 21 2020 1:49pm
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1754
Views: 233754

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

Did you know that the world speed record for a bicycle ridden in a conventional riding position belongs to a bike with 20" wheels? The differences in rolling resistance are so tiny that it's laughable to even bring up. The only thing big wheels have going for them is that they offer a smoother ride...
by Balmorhea
Sep 21 2020 2:48am
Forum: Battery Technology
Topic: can anyone tell me how this active balance charger works?
Replies: 1
Views: 68

Re: can anyone tell me how this active balance charger works?

it doesn’t need 2A to run. Most likely, what you’re seeing is that it can balance at up to 2A. That’s unlikely for a pack that isn’t seriously messed up or just assembled from imbalanced cells.
by Balmorhea
Sep 21 2020 12:44am
Forum: E-Bike General Discussion
Topic: a bike for my wife
Replies: 13
Views: 674

Re: a bike for my wife

I went this morning to decathlon and the guy did not advise at all to do so.. but in all honesty, she's going to use it for city commute, not offroad or so. One advice, don't give an ounce of consideration to the words coming from someone who wants to sell you something, will likely never see you a...
by Balmorhea
Sep 21 2020 12:28am
Forum: Large EV General Discussion
Topic: EV backhoe
Replies: 14
Views: 387

Re: EV backhoe

Hillhater wrote:
Sep 21 2020 12:07am
FYI.. if you decide to keep it as a Diesel with a rebuild.. $450 for the kit..pistons, bearings, seals Gaskets etc.
Breathe deep the poison! Hasten sweet death for man, woman, child, beast, and fowl! Huzzah!
by Balmorhea
Sep 21 2020 12:01am
Forum: Battery Technology
Topic: what is the consequence of non pure nickel
Replies: 16
Views: 416

Re: what is the consequence of non pure nickel

The moral of the story, for me, is that you don’t have to use flashlight batteries to power your e-bike. Somehow we knew this 25 years ago, but many of us have forgotten. im not sure to understand what you mean by that that you don’t have to use flashlight batteries to power your e-bike. Those 1865...
by Balmorhea
Sep 20 2020 10:59pm
Forum: Battery Technology
Topic: what is the consequence of non pure nickel
Replies: 16
Views: 416

Re: what is the consequence of non pure nickel

Electrical conductivity and thermal conductivity in metals are closely correlated. The same qualities that allow you to resistance weld effectively cause, well, resistance. No big deal if you’re making a ham radio pack or a household powerwall, where energy content is much more important than power ...
by Balmorhea
Sep 20 2020 8:04pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 88
Views: 1715

Re: Is regenerative braking really worth anything?

Just to be clear, just because a bike has regen doesn't mean that it can't coast. Regen is something you activate, so you can coast to your hearts content. Most DD motors don't coast worth a damn. Proper bicycle-style coasting requires a one-way clutch. So the discussion shifted? I like my DD motor...
by Balmorhea
Sep 20 2020 7:34pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 88
Views: 1715

Re: Is regenerative braking really worth anything?

Coasting beats regen..and coasting is the norm. Just to be clear, just because a bike has regen doesn't mean that it can't coast. Regen is something you activate, so you can coast to your hearts content. Most DD motors don't coast worth a damn. Proper bicycle-style coasting requires a one-way clutch.
by Balmorhea
Sep 20 2020 7:32pm
Forum: Battery Technology
Topic: Battery life cycle over 40 amps
Replies: 7
Views: 256

Re: Battery life cycle over 40 amps

There's not a lot of juice left to squeeze out below 3.3V/cell. My own preference is to charge up to 4.05V and discharge no lower than 3.3V. I occasionally charge up to 4.2V to exercise the balance function of my BMS, or to ensure maximum range for a long round trip.
by Balmorhea
Sep 20 2020 7:21pm
Forum: E-Bike Technical
Topic: Is regenerative braking really worth anything?
Replies: 88
Views: 1715

Re: Is regenerative braking really worth anything?

55 miles of descent? Are you kidding me? This is not typical. There are very few places in this world where you can do this. It is not even a descent that you would see in the Tour de France! Its not even a round trip ride! So, I call "No fairsies" you can't use that as a justification for regen an...
by Balmorhea
Sep 20 2020 1:41pm
Forum: Motor Technology
Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
Replies: 1754
Views: 233754

Re: Leaf / leafmotor / leafbike high efficiency 1500w motor

Lower throttle settings are also less efficient, as your graph shows. No, no, NO. You're looking at different conditions to the left of cruising speed where torque and power are significantly higher, so they occur for less time. They occur all the time if you use a real adult bike with full diamete...