Search found 683 matches

by donn
Aug 26 2018 12:46am
Forum: EBike General Discussion
Topic: Newb Needs Help with Build Questions
Replies: 33
Views: 1783

Re: Newb Needs Help with Build Questions

Do you mean, "what is a rim strip?" Rims are full of nasty sharp holes, one for each spoke, that would quickly blow the tube. A rim strip is therefore applied over the holes, all the way around the rim. The fabric strip is tape, so you will want to pick up a roll the right size - it should...
by donn
Aug 25 2018 12:40pm
Forum: EBike General Discussion
Topic: Newb Needs Help with Build Questions
Replies: 33
Views: 1783

Re: Newb Needs Help with Build Questions

OK, so just assuming for a moment that's rim width, you can start thinking about a tire. There are various opinions about how wide a tire you can stuff into a rim that's 18mm wide inside, so ... you decide. Then that will to some extent decide the wheel diameter, which you can look up. According to ...
by donn
Aug 25 2018 11:21am
Forum: EBike General Discussion
Topic: Newb Needs Help with Build Questions
Replies: 33
Views: 1783

Re: Newb Needs Help with Build Questions

Yeah, I'm not always an idiot and I did ask them about the width, but being a Chinese company they mistook it for some other dimension and told me the width was 25mm (Which it's clearly not that small). So I went ahead and ordered anyway. Hm, it isn't obvious to me. My 26" kit was built on an ...
by donn
Aug 24 2018 10:12am
Forum: EBike General Discussion
Topic: Considering this set-up. $300 Any thoughts?
Replies: 19
Views: 1404

Re: Considering this set-up. $300 Any thoughts?

dogman dan wrote:
Aug 24 2018 6:34am
I have run about 10,000 miles with front motor on shock forks myself, and have had all the problems.
How much power in the motor[s]? Does PAS vs throttle make a difference, would it help to leave the throttle in the box? (Aside from the question of what the O.P. may or may not want.)
by donn
Aug 23 2018 10:25am
Forum: EBike General Discussion
Topic: Considering this set-up. $300 Any thoughts?
Replies: 19
Views: 1404

Re: Considering this set-up. $300 Any thoughts?

Do you have a bicycle in mind, for the kit? What do you use, for the 2 and 4 stroke gas powered builds? Seems to me it would be useful experience. You can see what even this costs, new retail, and the bigger setup you probably want will be even more costly. A pretty rich pool to dip your toe in. 150...
by donn
Aug 22 2018 10:08pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

Donn, I would sure like to see a photo of your set up. I bought a Ryan Vanguard this summer, already mounted with a 500w cyclone mid drive. I am just about to pull the trigger on a Luna Mac 6t for the front in hope of: 1. raising top speed to 30, especially up gradual hills and 2. increasing stabil...
by donn
Aug 21 2018 8:56pm
Forum: EBike General Discussion
Topic: foldable electric scooter frame
Replies: 8
Views: 769

Re: foldable electric scooter frame

This is not likely helpful at all, so ignore if you don't want to waste your time looking at a sort of cool scooter design that isn't relevant to your project: MYLO.
by donn
Aug 21 2018 9:48am
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

Nice - is it an optical illusion, or is the rear wheel smaller diameter?
by donn
Aug 20 2018 11:27pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

That's somewhere between 60 and 75 watts per hour depending on how aerodynamic the Easy Racer really is. The biggest issue in this mode of travel would be comfort because you'll be at it for more than six hours. Comfort! I don't know about a Tour Easy, but my Vanguard is a lawn chair on wheels. The...
by donn
Aug 20 2018 3:47pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

I believe you are getting greater efficiency because you are on a recumbent. Your numbers jibe with the Grin motor simulator. Hm, hard to say. When I was running that thing for my own purposes I took the "semi-recumbent" option, whatever that means, because I really am not positive I get ...
by donn
Aug 20 2018 3:21pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

2 miles per amp-hour just means the rider is just hardly ever giving any power and using leg power all the time. And the power would have to be given not going up any hills, but using it on flats. http://www.ebikes.ca/learn/batteries.html 1.609344 kilometers = 1 mile Motor Type Rough energy usage M...
by donn
Aug 20 2018 10:30am
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

Although technically not totally correct, I go by miles per Amp hour. I don't know why it isn't correct, but it would help to know how many volts behind that. Unless the OP is a World class cyclist, the best he will ever see is 2 miles per Amp hour I can see I'd better get more experience with my s...
by donn
Aug 19 2018 11:50pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

toureasyman wrote; The Jumbo Shark battery from EM3EV is rated at 52V, 14.8 amp hours. I'm thinking that should be enough power to get me through the touring day. Somebody call Guinness. What do you figure for Wh/mile? It's not unlikely I'm confused about something, but my computer is saying 10, an...
by donn
Aug 19 2018 9:58pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

Donn, I would sure like to see a photo of your set up. I bought a Ryan Vanguard this summer, already mounted with a 500w cyclone mid drive. I am just about to pull the trigger on a Luna Mac 6t for the front in hope of: 1. raising top speed to 30, especially up gradual hills and 2. increasing stabil...
by donn
Aug 19 2018 2:02pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

I will second motomech's notion of a good ride, the motor pushing all the time but sharing the load with your legs. Depending on the load, that could be a very minimal battery drain. My throttle governs hub speed (apparently), so if my pedal input is enough to maintain that speed, it's 0W from the ...
by donn
Aug 19 2018 12:24pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

Note that a dd hub motor is an additional 15 lbs or so right on the axle. Still not anything like the load on the rear, but it would sure be a lot more than what it is now. I have a beard, for what it's worth. I don't know, I'm way into riding my recumbent bicycle, but I wouldn't claim it's anything...
by donn
Aug 19 2018 12:00pm
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

I will second motomech's notion of a good ride, the motor pushing all the time but sharing the load with your legs. Depending on the load, that could be a very minimal battery drain. My throttle governs hub speed (apparently), so if my pedal input is enough to maintain that speed, it's 0W from the b...
by donn
Aug 19 2018 2:08am
Forum: EBike General Discussion
Topic: Proper setup for touring?
Replies: 54
Views: 3216

Re: Proper setup for touring?

I'm too new at this to offer sage advice, but ... after riding my 260 lbs of Ryan Vanguard long wheelbase recumbent plus me around a bit, I find that I'm not riding quite like I thought I would. (For example, I changed gears today ... only twice. Is that weird? It sure wasn't my plan to be riding ar...
by donn
Aug 18 2018 9:09pm
Forum: EBike General Discussion
Topic: CA3 LiFePO4 state of charge
Replies: 16
Views: 862

Re: CA3 LiFePO4 state of charge

The point was that tool tip information already exists and people don't bother to use it. It's even invoked directly on the parameter that needs to be entered and still it's not used as your remarks and request here indicate. I was not aware of the existence of that Setup application until you ment...
by donn
Aug 18 2018 7:47pm
Forum: EBike General Discussion
Topic: CA3 LiFePO4 state of charge
Replies: 16
Views: 862

Re: CA3 LiFePO4 state of charge

Yes, like that. The user guide version could probably go into a little more depth for LiFe - if I have a "48V" battery, now what - is it 15, or 16? I can tell by actual voltage, so maybe some key values or a pointer to the charge curve chart. That the cell count is important, that's useful...
by donn
Aug 18 2018 6:16pm
Forum: EBike General Discussion
Topic: CA3 LiFePO4 state of charge
Replies: 16
Views: 862

Re: CA3 LiFePO4 state of charge

That would be good info for the user guide. The setup menus don't particularly care about that nominal battery voltage, so when you configure the right chemistry and it says OK, that's a 41V battery, it can be a puzzlement. Then given the right cell count, it changes that to a 51V battery. That list...
by donn
Aug 18 2018 12:40pm
Forum: EBike General Discussion
Topic: wheel and gear problems in Cambodia
Replies: 12
Views: 779

Re: wheel and gear problems in Cambodia

I believe this is what chalo's talking about: Indexed Shifters These need to have the spacing of detents ("clicks") to match the system they'll be used with. This usually goes along with the correct number of clicks -- though a shifter with an extra click also can work, as long as the spac...
by donn
Aug 18 2018 10:11am
Forum: EBike General Discussion
Topic: CA3 LiFePO4 state of charge
Replies: 16
Views: 862

Re: CA3 LiFePO4 state of charge

So it seemed to me a fairly safe bet to derive the number of cells from the actual voltage. The LiFePO4 battery is a little over half discharged and reads 52.2; 52.2/16 (the published cell count) matches the CA user guide Battery SOC Curve value close enough at 3.26. The fully charged AllCell Lithiu...
by donn
Aug 18 2018 9:46am
Forum: EBike General Discussion
Topic: Hub Motor Kit
Replies: 6
Views: 674

Re: Hub Motor Kit

Yes, indeed current is where they got a little turned around with the specs. Where the auction text says "1.The system requires a 48 Volt electrokinetic cell battery with a nominal capacity not less than 14.5Ah", I guess they might rather have said something like, the system requires a bat...
by donn
Aug 18 2018 1:50am
Forum: EBike General Discussion
Topic: Hub Motor Kit
Replies: 6
Views: 674

Re: Hub Motor Kit

I don't know, and I probably should keep quiet since I know hardly anything, but ... looks like a pretty good deal to me. You're really asking about Watts, and indeed there is no relevant number other than the max - 1500 (or 250.) Volts is 48V. It's cheap, so you can't expect premium quality anythin...