Search found 528 matches

by donn
Jul 11 2020 9:46am
Forum: E-Bike General Discussion
Topic: Ebikes are much safer than non-assisted bikes
Replies: 7
Views: 165

Re: Ebikes are much safer than non-assisted bikes

Same thing likely happens on those bike rentals. Strange bike, maybe not rode much in years, etc. Oh yeah. They're pretty wobbly, and to make things worse, it often seems to be a group of two or three, which I'm sure further diminishes their competence. But "real" ebikes? not rentals, not the Europ...
by donn
Jul 10 2020 4:20pm
Forum: E-Bike General Discussion
Topic: Ebikes are much safer than non-assisted bikes
Replies: 7
Views: 165

Re: Ebikes are much safer than non-assisted bikes

Note that this is from an insurer who will cover "your bike", not the Lime bike you rent at the curb with your cellular phone, and that's what their data reflects. If you got accident rates with rentals, could be a rather different story. It isn't the bicycle that gets in wrecks, it's the rider. And...
by donn
Jul 10 2020 10:00am
Forum: E-Bike General Discussion
Topic: Wiring identification - assistance
Replies: 5
Views: 101

Re: Wiring identification - assistance

I ain't gonna guess. What you need is a trial and error procedure, and the people who really know this stuff may be able to help with that. Obviously, you need the power, and everyone agrees that's those Powerpole connectors. You might be able to diagnose many things without the motor hooked up? But...
by donn
Jul 09 2020 8:19am
Forum: E-Bike General Discussion
Topic: Buying first system - Need input please.
Replies: 18
Views: 249

Re: Buying first system - Need input please.

I went down to the local up-scale shopping park to pick something up Tuesday, and when I got there I found that I had left the pack with my cable at home. Normally I'd lock it up, with that cable, but if I don't have it, I don't. (When I bought it, the shop owner wasn't too happy with my choice - no...
by donn
Jul 08 2020 11:09am
Forum: E-Bike General Discussion
Topic: Buying first system - Need input please.
Replies: 18
Views: 249

Re: Buying first system - Need input please.

This is a lake area where pretty much everything surrounds the lake shores making most of the riding fairly flat but we are surrounded by mountains so getting to and from the lake is either up or down but not too terribly steep to allow a fit person to easily pedal it with no assist on the above sa...
by donn
Jul 07 2020 2:28pm
Forum: E-Bike General Discussion
Topic: Please advise me on a homemade motorcycle
Replies: 23
Views: 448

Re: Please advise me on a homemade motorcycle

Why not buy Dauntless' motors, and use them as intended, with propellers?
by donn
Jul 06 2020 12:51pm
Forum: E-Bike General Discussion
Topic: Please advise me on a homemade motorcycle
Replies: 23
Views: 448

Re: Please advise me on a homemade motorcycle

https://www.altitudehobbies.com/collections/leopard-airplane-motors/products/leopard-8072-11t-160kv-brushless-airplane-motor (Maybe I should go bigger. Have to figure the gear ratio then kv) I'm just guessing this relates to drive via propeller, wonder how that would relate to a bicycle type of loa...
by donn
Jul 02 2020 7:11pm
Forum: E-Bike General Discussion
Topic: Test riding my "new" FS ebike results so far
Replies: 3
Views: 147

Re: Test riding my "new" FS ebike results so far

On a 40 mile ride, average amps were 6.9, average watts were 112, avg mph was 11.4 and avg miles per Amp hour were 5.74. It's been 39 degK in the sun, in the afternoon, highest observed hub temperature has been 62 degK. Wow, mighty cold where you are. Nitrogen freezes at 63°K, oxygen at 54°K - that...
by donn
Jun 30 2020 9:00pm
Forum: E-Bike General Discussion
Topic: motor/controller/battery compatability
Replies: 9
Views: 190

Re: motor/controller/battery compatability

Getting a smaller controller will definitely lower the risk of the bike pulling too much current from the battery and shutting it down. Or he could 1) find out what his battery will actually support, and 2) make sure his existing controller is configured accordingly, for the zero risk/ no cost solu...
by donn
Jun 30 2020 2:57pm
Forum: E-Bike General Discussion
Topic: Buy or build...
Replies: 8
Views: 206

Re: Buy or build...

Yeah, if it takes extreme care, it makes sense to count on the Chinese battery industry. Those who decide their storage room needs shelves, so they go to the store to buy shelves. Those who decide their storage room needs shelves, so they go to the store to buy wood. and don't forget, Those who are ...
by donn
Jun 30 2020 8:22am
Forum: E-Bike General Discussion
Topic: motor/controller/battery compatability
Replies: 9
Views: 190

Re: motor/controller/battery compatability

Your controller can be programmed, and I would guess that one of the things you can change is the maximum amperage draw. That's how you match the controller to the battery. I gave it a quick look online to verify this, but the only source I could find was a stinking video, so you're on your own, but...
by donn
Jun 29 2020 5:45pm
Forum: E-Bike General Discussion
Topic: Direct Drive Motors-Internal or External Controllers?
Replies: 8
Views: 191

Re: Direct Drive Motors-Internal or External Controllers?

you have to run wires for temperature sensor inside motor , right? inside controller cut on number of wires entering motor for sure. I wondered about that. This isn't my controller in the picture, but it's somewhat like : https://www.electric-bikes.com/betterbikes/enduro/9fet.jpg A controller in th...
by donn
Jun 28 2020 9:47am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1596
Views: 210872

Re: 2 Speed Xiongda hubmotor

I don't see this motor among the options for the ebikes.ca Motor Simulator. Are there possibly some commonly encountered motors that would perform vaguely similarly to one or the other of the gearing selections?
by donn
Jun 24 2020 12:58am
Forum: E-Bike General Discussion
Topic: A potato made me crash my bike and faceplant.
Replies: 78
Views: 1560

Re: A potato made me crash my bike and faceplant.

The risks are higher for peds than for cyclists, you know. I don't know if the helmet would be much help there - but I've heard that if motorists, inside cars, wore helmets it would cut down on serious injuries. Of course, they don't, so it isn't really risky to drive without a helmet. I think most...
by donn
Jun 24 2020 12:43am
Forum: E-Bike General Discussion
Topic: A potato made me crash my bike and faceplant.
Replies: 78
Views: 1560

Re: A potato made me crash my bike and faceplant.

Your risk on a bicycle is mostly from the fall - long way down, for most of you. I ride recumbent bicycles, for safety.

Anyway ... you're not going to wear a full face motorcycle helmet? Might be taking a big risk there.
by donn
Jun 23 2020 10:14pm
Forum: E-Bike General Discussion
Topic: A potato made me crash my bike and faceplant.
Replies: 78
Views: 1560

Re: A potato made me crash my bike and faceplant.

If you're happy to wear minimal equipment and put your life in their hands, good for you. But calling someone stupid for taking the risk more seriously isn't cool. Note that if you follow this thread back to where this came up, 1) no one called anyone stupid, and 2) the equipment in question includ...
by donn
Jun 21 2020 1:13pm
Forum: E-Bike General Discussion
Topic: Large front/small back wheel
Replies: 22
Views: 509

Re: Large front/small back wheel

Are there cargo bike frame designs, lots of weight racked over the rear wheel that make use of a strong swing-arm style suspension? Surfing for my own curiosity, I found something on this right here - Why is there such a lack of full suspension cargo bikes? - wherein Chalo proposes that it's hard t...
by donn
Jun 21 2020 11:00am
Forum: E-Bike General Discussion
Topic: Large front/small back wheel
Replies: 22
Views: 509

Re: Large front/small back wheel

The other way to look at that would be, of course, you need suspension over a small rear wheel, especially if the frame is going to be heavily loaded there. That would have to be taken into account fairly early in the design for something like a cargo bike, so you have enough usable area on the susp...
by donn
Jun 21 2020 9:59am
Forum: E-Bike General Discussion
Topic: Large front/small back wheel
Replies: 22
Views: 509

Re: Large front/small back wheel

Drunkskunk wrote:
Jun 20 2020 8:54pm
by going to a larger front wheel, but you will notice the decrease in handling.
Curious why this happens? I don't really even know for sure what "handling" means here, so it's hard to guess what's going on in mechanical terms. More gyroscopic inertia? Longer contact patch?
by donn
Jun 17 2020 2:26am
Forum: E-Bike General Discussion
Topic: Studebiker's Next (last?) Bike E.........
Replies: 57
Views: 12667

Re: Studebiker's Next (last?) Bike E.........

Like that, though the details will of course vary. The rod end bearing looks familiar anyway, and in the end there you are, without the "wheel flop" steering that you'd have to deal with if the forks were aimed at your handlebars back there. The one I had to work with is factory in the front, and I ...
by donn
Jun 16 2020 10:45am
Forum: E-Bike General Discussion
Topic: Studebiker's Next (last?) Bike E.........
Replies: 57
Views: 12667

Re: Studebiker's Next (last?) Bike E.........

I actually saw a similar recumbent to the Bike E today, I dont think I could ride with confidence a bike like that. That's interesting - there are few enough BikeEs to be seen riding around, let alone anything similar. Except the Maxarya, which would be a Canadian company if I remember right. But M...
by donn
Jun 14 2020 10:37am
Forum: E-Bike General Discussion
Topic: Tourque sensor bb /pas or both
Replies: 8
Views: 327

Re: Tourque sensor bb /pas or both

how is it not good for recumbent, mind me asking? On a recumbent, one one hand, of course you don't stand on a pedal, and on the other hand, you can't stand on a pedal. Once you get it going, it's the best ride there is - beats anything - but that first couple of seconds is a little tricky. You hav...
by donn
Jun 14 2020 8:50am
Forum: E-Bike General Discussion
Topic: Tourque sensor bb /pas or both
Replies: 8
Views: 327

Re: Tourque sensor bb /pas or both

DogDipstick wrote:
Jun 14 2020 7:14am
YOu can stand on the pedal if it is not turning, no power out.
That's what I've heard, but I had to ask because it seems so improbable. Thanks for confirming. Makes it useless for recumbent bicycles.
by donn
Jun 13 2020 9:48am
Forum: E-Bike General Discussion
Topic: Tourque sensor bb /pas or both
Replies: 8
Views: 327

Re: Tourque sensor bb /pas or both

My Grin TCDM bb is awesome..... makes the bike. Can gently give power at 5-6A all day and leave me pedaling nicely up / down any hills. Not hard to setup, pretty much turnkey, didnt mess with or tune much. Your torque sensor is connected to a CycleAnalyst computer, right? How does it respond to ini...
by donn
Jun 10 2020 8:41pm
Forum: E-Bike General Discussion
Topic: non-oval rings on a pedal assist e-bike (was: Human watts, Erider and Cycle Analyst)
Replies: 9
Views: 397

Re: Human watts, Erider and Cycle Analyst

But even though that makes it a good match for how a huge majority of cyclists actually ride, it made athletic riders hate it. And of course whatever racers prefer must be best for everyone, right? So it failed in the marketplace. Ha, well said. I agree that they are optimal for a lower cadence. In...