Search found 496 matches

by donn
May 30 2020 8:43am
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 32
Views: 496

Re: Would like to make an eTrike less prone to tipping over

How far did it tilt over, at rest? Seems to me that would be an awkward compromise. You'd want to to be pretty far, a good deal farther than you'd ever want to lean in a turn, but take-off from there would look pretty wild. Maybe some kind of spring loaded retractable landing gear ...
by donn
May 28 2020 2:24pm
Forum: E-Bike General Discussion
Topic: Want to build something comfortable, but issues with local bike path 'style'
Replies: 26
Views: 376

Re: Want to build something comfortable, but issues with local bike path 'style'

One of the puzzling things about US market bikes is the "comfort bike", which is intended for a similar purpose to that of a Dutch bike, but set up badly for it, with a handlebar height and seat tube angle that are at odds with each other. I rode a Netherlands-made/style bicycle around the parking ...
by donn
May 28 2020 11:25am
Forum: E-Bike General Discussion
Topic: Want to build something comfortable, but issues with local bike path 'style'
Replies: 26
Views: 376

Re: Want to build something comfortable, but issues with local bike path 'style'

Nobody rides open road anymore here because it's not open road anymore and because large pickup drivers and cement truck drivers habitually buzz close to bikes. It's the opposite here. If you have any inclination to practice the social distance thing, you may as well leave the multi-use trails to t...
by donn
May 28 2020 9:01am
Forum: E-Bike General Discussion
Topic: Want to build something comfortable, but issues with local bike path 'style'
Replies: 26
Views: 376

Re: Want to build something comfortable, but issues with local bike path 'style'

MikeSSS wrote:
May 27 2020 10:48pm
The recumbents and tadpoles I see on bike paths look higher risk than regular bikes.
Recumbent (2 wheel) bicycles are lower risk than regular bikes.
by donn
May 27 2020 5:06pm
Forum: E-Bike General Discussion
Topic: Want to build something comfortable, but issues with local bike path 'style'
Replies: 26
Views: 376

Re: Want to build something comfortable, but issues with local bike path 'style'

The 2 wheel recumbents with a shorter wheel base might get past with some juggling, but I have never ridden one and fear that even with suspension on both wheels there is an issue with recumbents because you can not do a unweighting move with your legs to get over some road problems. The paths here...
by donn
May 24 2020 11:36am
Forum: E-Bike General Discussion
Topic: Geared hub fat bike.
Replies: 12
Views: 321

Re: Geared hub fat bike.

If your direct drive is set up to return regenerated power from down hill braking, and you total that up against minimal power cost to make up for the less-than-27W core loss (see "feathering" above), I would expect you will come out in the black if you have any significant amount of hills. I believ...
by donn
May 21 2020 10:38pm
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 32
Views: 496

Re: Would like to make an eTrike less prone to tipping over

This is why motorcycles are much more stable at speed than eBikes. Well, indeed a motorcycle is a better ride at the speeds they're designed for, than a bicycle, and at higher speeds in that range I expect the same holds true for larger vs. smaller motorcycles ... but this is at the highest level o...
by donn
May 21 2020 11:36am
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 32
Views: 496

Re: Would like to make an eTrike less prone to tipping over

Riding with cars around, you want to be nimble and balanced, being able to react quickly to any dangerous situation. City trafic environnement is not the ideal place to ride a recumbent, that is at its best in long rides with few obstacles. Maybe not ideal in that respect, but as often happens we m...
by donn
May 21 2020 9:52am
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 32
Views: 496

Re: Would like to make an eTrike less prone to tipping over

In the likely event that this is a loony tunes idea, I would be grateful for any suggestions that might help with keeping the bike upright at top speeds of 15-18 MPH. Of course on the other end of the radical solutions spectrum, there's 2 wheels - a bike for real. I mention it because while it's na...
by donn
May 20 2020 11:56pm
Forum: E-Bike General Discussion
Topic: Would like to make an eTrike less prone to tipping over
Replies: 32
Views: 496

Re: Would like to make an eTrike less prone to tipping over

Image

I believe John Morciglio has something to do with that, and it's tricky to handle.

An experimental tilting design from Wisconsin: https://sites.uwm.edu/bike-motorcycle-l ... -tricycle/
by donn
May 19 2020 1:17pm
Forum: E-Bike General Discussion
Topic: Fast long-range cheap tourer[emoji2]
Replies: 25
Views: 714

Re: Fast long-range cheap tourer[emoji2]

Is there a 10wh/km solution? That's what is maybe my new goal Sure. The simulation says you get there when you drop down to about 36 kph - but that's assuming on one hand, you're pulling 150W on the pedals, and on the other that you're on an upright MTB platform. As MadRhino points out, this is abo...
by donn
May 18 2020 9:59pm
Forum: E-Bike General Discussion
Topic: 2 wheel drive ebike with self charging
Replies: 14
Views: 329

Re: 2 wheel drive ebike with self charging

I have to wonder if there may be some misapprehension over the expectations. It isn't clear to me that it isn't just intended as an auxiliary that adds a regen function in a setup that didn't have it already. Not that I'm saying it would work, anyway. It sounds ("certain rpm ... voltage higher than ...
by donn
May 18 2020 10:18am
Forum: E-Bike General Discussion
Topic: Torque sensor problem with v3.03 Cycle Analyst
Replies: 10
Views: 189

Re: Torque sensor problem with v3.03 Cycle Analyst

As an aside, and just to be sure that I cover all of the bases, does that disconnected torque sensor value of "4.98V 212 Nm" sound correct? I have no idea about any of this, but just happened to have read this passage in the 3.1 manual recently, so I pass it on since it appears to confirm your thin...
by donn
May 17 2020 4:29pm
Forum: E-Bike General Discussion
Topic: Fast long-range cheap tourer[emoji2]
Replies: 25
Views: 714

Re: Fast long-range cheap tourer[emoji2]

On ebikes.ca simulator it shows with specific systems I could do 42-43 km/h on 10 wh is that true? Is it too optimistic? What is your experience? Example? The number I see there is more like 17 Wh/km, which if my math is right would mean a 33 Ah battery. Oops, I forgot to credit you for the extra 5...
by donn
May 17 2020 11:19am
Forum: E-Bike General Discussion
Topic: need some advice on what to get or at least the options available
Replies: 8
Views: 122

Re: need some advice on what to get or at least the options available

Doesn't voltage depend in the battery? Or does an advanced controller like the phase runner have the ability to alter the voltage that's being fed to the motor? Yes, and yes. System voltage that we're usually talking about is a function of the battery. Motor voltage is determined by the throttle, v...
by donn
May 17 2020 9:16am
Forum: E-Bike General Discussion
Topic: Fast long-range cheap tourer[emoji2]
Replies: 25
Views: 714

Re: Fast long-range cheap tourer[emoji2]

Hi I know that all the above don't go together but let me explain. The title made more sense than the explanation. How would you feel about cutting the speed in half? At 50kph, it won't really matter how hard you pedal. At 25kph a real athlete would stand a good chance of doing it without the motor...
by donn
May 15 2020 2:30pm
Forum: E-Bike General Discussion
Topic: Shorten Hub Motor Axle with Sawzall
Replies: 6
Views: 158

Re: Shorten Hub Motor Axle with Sawzall

Reason behind this is the narrow dropout on this 50+ year old fork and the fact that this ancient bike has only one front rod brake that doesn't really work well. I decided to go for a disk brake adapter that mounts right outside of the dropout and then attaches with a clamp to the fork to hold the...
by donn
May 15 2020 2:02am
Forum: General Discussion
Topic: Thoughts? Ebike ticketed/conviction upheld (Canada)
Replies: 142
Views: 2524

Re: Thoughts? Ebike ticketed/conviction upheld (Canada)

Here we are again, at the "bicycle or motorcycle" grey area, this time on the other end. The legislators that have to sort this out don't usually appear to be very sympathetic to any high performance ambitions, and that kind of makes sense because, again, they aren't crafting a full new regulatory f...
by donn
May 15 2020 12:04am
Forum: General Discussion
Topic: Thoughts? Ebike ticketed/conviction upheld (Canada)
Replies: 142
Views: 2524

Re: Thoughts? Ebike ticketed/conviction upheld (Canada)

So because one didn't earn the physical conditioning to travel at above average pace they should be disallowed from riding at even a snails pace whenever the path points slightly uphill. Gotcha. I don't think you "got" me, though to be honest I can't make any sense out of this. No one anywhere is "...
by donn
May 14 2020 10:00pm
Forum: General Discussion
Topic: Thoughts? Ebike ticketed/conviction upheld (Canada)
Replies: 142
Views: 2524

Re: Thoughts? Ebike ticketed/conviction upheld (Canada)

What I would prefer is that the CA allowed pure torque to startup, and control via pure torque or torque/cadence after that, and I wouldn't need such super low gearing to get started. But it doesn't, so this is how it works for me, until I build electronics to get around this, someday (maybe). I wo...
by donn
May 13 2020 10:07am
Forum: General Discussion
Topic: Thoughts? Ebike ticketed/conviction upheld (Canada)
Replies: 142
Views: 2524

Re: Thoughts? Ebike ticketed/conviction upheld (Canada)

Pas: must not start until 3kmh (less than one pedal rotation, 3 comes quickly) and must stop when you stop pedaling. Is that how all PAS works? I've never used PAS, but that sounds like a "cadence" based system. I would be very disappointed if a system with a torque sensor worked like that. For me,...
by donn
May 12 2020 11:21pm
Forum: General Discussion
Topic: Thoughts? Ebike ticketed/conviction upheld (Canada)
Replies: 142
Views: 2524

Re: Thoughts? Ebike ticketed/conviction upheld (Canada)

The motor must be capable of being propelled by muscular power using the pedals, Interesting, and very strange choice of words (the highlighted ones). ... and not to be found in "MOTOR ASSISTED CYCLE REGULATION" http://www.bclaws.ca/civix/document/id/complete/statreg/151_2002 , which does have the ...
by donn
May 08 2020 6:41pm
Forum: E-Bike General Discussion
Topic: E bike milage
Replies: 55
Views: 1437

Re: E bike milage

That is mid drive domain. No matter how much we like the simplicity of a hub build, there are situations where a mid drive is the best solution. And I think I've seen you and others propose that the best mid drive solution for extreme loads isn't going to be one of the couple widely available crank...
by donn
May 06 2020 3:10pm
Forum: E-Bike General Discussion
Topic: Question about making recumbent e-trike
Replies: 21
Views: 507

Re: Question about making recumbent e-trike

LexHammer wrote:
May 06 2020 2:57pm
What about the visibility, everybody is talking about. You had any problems with cars not seeing you?
He appears to be still alive, so he's the wrong guy to ask. Ha ha ... sort of.
by donn
May 06 2020 8:59am
Forum: E-Bike General Discussion
Topic: Question about making recumbent e-trike
Replies: 21
Views: 507

Re: Question about making recumbent e-trike

For me, to get this kind of bike, i need to change my driving license, which inludes 40 days of courses, like you are new driver, going to tests, exams, paying around 400$. Then i have to pay the local taxes for having another vehicle which is around 350$ a year, then the law forces me to wear helm...