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Search: Posts Made By: klevin
Showing results 1 to 50 of 63
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Forum: Electric Bikes
08-08-22, 01:43 PM
Replies: 5
Views: 485
Posted By klevin

Where in rural MA? I'm just north of you in SW...

Where in rural MA? I'm just north of you in SW NH.
Forum: Electric Bikes
04-29-22, 06:13 AM
Replies: 46
Views: 7,883
Posted By klevin

So you'd be willing to waive any right to medical...

So you'd be willing to waive any right to medical care, disability income and such if you have a "stretch" head injury? Are you an organ donor?
Forum: Electric Bikes
04-28-22, 03:16 PM
Replies: 46
Views: 7,883
Posted By klevin

Already did in post 40. In my youth, I...

Already did in post 40.
In my youth, I listened to the debates on motorcycle helmets and how folks should have the right to scramble their brains if they so chose, that it was none of the business...
Forum: Electric Bikes
04-26-22, 04:02 PM
Replies: 46
Views: 7,883
Posted By klevin

This project sounded insanely risky from the get...

This project sounded insanely risky from the get go. Now I see a video of the guy going fast with no helmet. I realized he's not insane. He just wants to be an organ donor! He doesn't need to...
Forum: Electric Bikes
11-27-21, 10:04 PM
Replies: 17
Views: 2,092
Posted By klevin

But this is the whole point. A mid drive allows...

But this is the whole point. A mid drive allows one to maintain the same pedal cadence range, therefore the same motor RPM range at widely varying speeds. That means a motor can be optimized for...
Forum: Electric Bikes
10-30-21, 07:15 AM
Replies: 6
Views: 1,316
Posted By klevin

Some do, like the Bosch battery on my Trek.

Some do, like the Bosch battery on my Trek.
Forum: Electric Bikes
10-22-21, 08:44 AM
Replies: 26
Views: 2,833
Posted By klevin

Who said anything about a Bosch specific charger?...

Who said anything about a Bosch specific charger?
Yes, the Satiator is designed to work with a wide range of battery types, including lead acid. The only way it can do that is to just have a user...
Forum: Electric Bikes
10-22-21, 08:08 AM
Replies: 26
Views: 2,833
Posted By klevin

Totally unreferenced battery life graph. Could...

Totally unreferenced battery life graph. Could be true, could be urban legend.

Hard data on this topic seems to be remarkably difficult to find. Ditto for real life experience. I asked on a...
Forum: Electric Bikes
10-14-21, 09:18 AM
Replies: 26
Views: 2,833
Posted By klevin

For all we know, the BMS in branded battery...

For all we know, the BMS in branded battery systems could already be limiting useful capacity to extend battery life. Since I have a Bosch system, I'll ask on a different forum to see if anyone...
Forum: Electric Bikes
10-14-21, 08:27 AM
Replies: 26
Views: 2,833
Posted By klevin

Smart chargers, which we hope are all lithium...

Smart chargers, which we hope are all lithium battery chargers, use voltage sensing, and switch to low current trickle charging at a certain point. No charger could use time as a variable. Perhaps...
Forum: Electric Bikes
10-14-21, 07:21 AM
Replies: 26
Views: 2,833
Posted By klevin

To some degree, things depend on the charger. We...

To some degree, things depend on the charger. We don't usually know, for example, to what voltage our chargers take the battery, nor do we know how our battery charge indicators are calibrated. ...
Forum: Electric Bikes
10-11-21, 12:20 PM
Replies: 17
Views: 1,164
Posted By klevin

Ooh. Another example of your creativity. You...

Ooh. Another example of your creativity. You can use the font tool! Whoopie! Any more examples of your creative genius?

I totally agree with your bold statement though.
Forum: Electric Bikes
10-11-21, 09:28 AM
Replies: 17
Views: 1,164
Posted By klevin

Oh. So why do you need a stand? And I note that...

Oh. So why do you need a stand? And I note that this platform is hardly most folks definition of a stand. Seems you could have just used a few thick old books?

Maybe your title should have been...
Forum: Electric Bikes
10-11-21, 09:16 AM
Replies: 17
Views: 1,164
Posted By klevin

So why didn't you show a picture from the other...

So why didn't you show a picture from the other side? Anyway, all you did was make a simple platform. If you had a bigger ebike, or one that doesn't have some odd protection bracket, this would not...
Forum: Electric Bikes
09-21-21, 06:15 AM
Replies: 11
Views: 874
Posted By klevin

Some luxury cars and SUV fake exhaust sounds...

Some luxury cars and SUV fake exhaust sounds through the in car audio system, so why not on an ebike?
Forum: Electric Bikes
09-20-21, 06:11 AM
Replies: 11
Views: 874
Posted By klevin

This company, Schaeffler, just has a good public...

This company, Schaeffler, just has a good public affairs unit. Their approach might make sense for throttle drive cargo bikes with massive batteries where pedals are optional, but as johnin said,...
Forum: Electric Bikes
09-09-21, 05:33 PM
Replies: 10
Views: 1,154
Posted By klevin

Looks like another newcomer that didn't hear what...

Looks like another newcomer that didn't hear what he wanted, so never to be heard from again. How can we ever help someone who lists two very different bikes, and doesn't even tell us their use case?
Forum: Electric Bikes
09-09-21, 05:29 PM
Replies: 5
Views: 1,090
Posted By klevin

The e-motorcycle system, like e-cars, is very...

The e-motorcycle system, like e-cars, is very different from bicycles. For vehicles used mostly as transportation, especially over distances, there is pressure to standardize charging systems,...
Forum: Electric Bikes
09-03-21, 07:24 AM
Replies: 23
Views: 1,805
Posted By klevin

Raleigh has unfortunately gone the way of many...

Raleigh has unfortunately gone the way of many heritage and legacy brand names, sold into the hands of private equity who usually milk what's called "brand equity" for as long as they can. In this...
Forum: Electric Bikes
08-31-21, 09:27 AM
Replies: 22
Views: 1,799
Posted By klevin

You, of course, miss the point, and obviously...

You, of course, miss the point, and obviously don't understand marketing. Yes, watts are watts. No, advertised "wattage" need not have any relationship to actual power available to the user.
...
Forum: Electric Bikes
08-31-21, 06:21 AM
Replies: 22
Views: 1,799
Posted By klevin

Definitely not true. Wattage can be whatever the...

Definitely not true. Wattage can be whatever the manufacturer wants it to be: instantaneous peak power, gross, net, etc. Most of these high wattage motors are no doubt rated for instantaneous peak...
Forum: Electric Bikes
08-30-21, 06:34 AM
Replies: 22
Views: 1,799
Posted By klevin

Are you sure about this? Bosch performance speed...

Are you sure about this? Bosch performance speed drive motors are nominally 250 watt, and used on a lot of high quality bikes. I also think the whole thing of motor wattage is a lot of BS, since...
Forum: Electric Bikes
08-23-21, 12:04 PM
Replies: 22
Views: 1,799
Posted By klevin

For me, a 70+ retiree with health issues, living...

For me, a 70+ retiree with health issues, living in a rural area where flat rides are only a dream, it's ebike or walk. Any ride from my house, for example, involves at least several hundred feet of...
Forum: Electric Bikes
08-16-21, 12:29 PM
Replies: 38
Views: 3,110
Posted By klevin

Bikes from mfgr like Radpower are great starter...

Bikes from mfgr like Radpower are great starter ebikes for city dwellers, especially for those who want to ride bike paths and aren't in hilly cities. If one decides to do more, say venture into...
Forum: Classic & Vintage
08-02-21, 12:43 PM
Replies: 59
Views: 8,338
Posted By klevin

Your bike reminds me of the first decent bike I...

Your bike reminds me of the first decent bike I owned, a Centurion, don't remember which model, that I got while in grad school at UCSB, around 1975. Broke spokes regularly until I built new wheels...
Forum: Electric Bikes
06-10-21, 04:23 PM
Replies: 34
Views: 17,917
Posted By klevin

Calsun, Kuat makes a ramp for the NV2.0 ebike...

Calsun, Kuat makes a ramp for the NV2.0 ebike rack. We use it with two bikes with fenders. The "hook" we just put over the fenders. The downward force isn't that much. It's mostly for side to...
Forum: Electric Bikes
06-01-21, 07:07 AM
Replies: 40
Views: 4,189
Posted By klevin

This may be legally true in some areas, but not...

This may be legally true in some areas, but not others. And to complicate matters further, in some states, like mine, the legal definitions conflict.

To put it another way, these things are...
Forum: Electric Bikes
05-26-21, 07:20 AM
Replies: 40
Views: 4,189
Posted By klevin

Not true where I live, New Hampshire. Current...

Not true where I live, New Hampshire. Current state law and definitions are filled with contradictions.

"The problem is when people think" they know the answers, when they haven't done their...
Forum: Electric Bikes
05-25-21, 08:18 AM
Replies: 40
Views: 4,189
Posted By klevin

I don't think there will ever be a solid line...

I don't think there will ever be a solid line because buyers cover a spectrum, from those that like the motorcycle look, if not the price to those that want their ebike to look like a road bike, and...
Forum: Electric Bikes
05-24-21, 11:40 AM
Replies: 20
Views: 2,380
Posted By klevin

Interesting. I wonder if any mid drives show the...

Interesting. I wonder if any mid drives show the same thing? Yes, I can see the safety issue. Must have been scary the first time you noticed.

Yet another difference to keep in mind when...
Forum: Electric Bikes
05-23-21, 04:15 PM
Replies: 20
Views: 2,380
Posted By klevin

I have no doubt folks do these things. I also...

I have no doubt folks do these things. I also have no doubt the internet is "full" of accounts. But these things, and folks, are outliers, or using cheap(er) hardware.

But, it's too easy to...
Forum: Electric Bikes
05-23-21, 11:29 AM
Replies: 20
Views: 2,380
Posted By klevin

What brand motor and controller do you have? Mid...

What brand motor and controller do you have? Mid or hub drive? My pedal assist motor behaves nothing like what you describe.
Forum: Electric Bikes
05-23-21, 10:35 AM
Replies: 20
Views: 2,380
Posted By klevin

Maybe you can burn up a cheap hub motor, but the...

Maybe you can burn up a cheap hub motor, but the decent ones have thermal protection. And with modern electric motors like you invariably find these days, The power going to the motor is independent...
Forum: Electric Bikes
05-23-21, 06:21 AM
Replies: 20
Views: 2,380
Posted By klevin

Except that you can't lug a hub motor any more...

Except that you can't lug a hub motor any more than you can with a mid drive. Modern electric motors, with their modern controllers, are different beasts than the motors we grew up with. Locked...
Forum: Electric Bikes
05-22-21, 02:55 PM
Replies: 34
Views: 17,917
Posted By klevin

I use a Kuat NV 2.0 to hold our 2 Allant 8s. The...

I use a Kuat NV 2.0 to hold our 2 Allant 8s. The rack is heavier than the Sherpa I had for our analog bikes, but we don't take it off that often, and I can still take it off single handed. I'm 71...
Forum: Electric Bikes
05-22-21, 02:46 PM
Replies: 20
Views: 2,380
Posted By klevin

Hub drives seem to be the domain of cheaper...

Hub drives seem to be the domain of cheaper bikes. Their motors appear to be less reliable, but easy to replace, although I haven't read much about anyone, except for homebuilts, needing to replace...
Forum: Electric Bikes
04-21-21, 02:43 PM
Replies: 35
Views: 4,045
Posted By klevin

Well, it happened. Spouse looked at the bike...

Well, it happened. Spouse looked at the bike books I have (had them for years....) and saw that there aren't really any flat areas around here with decent bike paths or tour routes. She's gone on...
Forum: Electric Bikes
04-10-21, 06:30 AM
Replies: 4
Views: 1,449
Posted By klevin

Came with my new ebike but I find it quirky and...

Came with my new ebike but I find it quirky and frustrating to use.

Anyone know of any resources for how to use? Like an instruction manual or a video? The stuff I could find, like their web...
Forum: Electric Bikes
04-09-21, 06:54 AM
Replies: 4
Views: 923
Posted By klevin

71 year old with poor exercise tolerance here,...

71 year old with poor exercise tolerance here, living in SW New Hampshire, where everything is hilly. Just bought a Trek Allant 8s. Spouse still rides a conventional bike. Last year she'd leave me...
Forum: Electric Bikes
04-06-21, 05:27 PM
Replies: 35
Views: 4,045
Posted By klevin

You have a 15 pound road bike? (55-40=15). ...

You have a 15 pound road bike? (55-40=15).

So much depends on one's use case, and the physical environment. The Netherlands is perfect for light weight minimal range ebikes - flat and...
Forum: Electric Bikes
04-06-21, 02:05 PM
Replies: 35
Views: 4,045
Posted By klevin

Just did my first serious ride on my new Trek...

Just did my first serious ride on my new Trek Allant. You folks are right. It does NOT feel clunky when you're riding and the power boost going up hills is magic for old f**ts like me. Last year...
Forum: Electric Bikes
04-06-21, 06:07 AM
Replies: 17
Views: 3,016
Posted By klevin

amazing set of pictures. wish I had the...

amazing set of pictures. wish I had the creativity and ability to make such things.
Forum: Electric Bikes
03-31-21, 11:00 AM
Replies: 10
Views: 1,653
Posted By klevin

You're getting closer! But the whole purpose of...

You're getting closer! But the whole purpose of the capacitor, what we used to call a condensor, is to suppress point arcing. If you've ever changed points in a car driven with a bad condensor,...
Forum: Electric Bikes
03-31-21, 10:00 AM
Replies: 10
Views: 1,653
Posted By klevin

Better answer but still not quite right. The...

Better answer but still not quite right. The energy for making the spark was (and still may be) stored in the magnetic field of the ignition coil - one reason they were so big. But yes, ignition...
Forum: Electric Bikes
03-30-21, 05:34 PM
Replies: 10
Views: 1,653
Posted By klevin

The condensers that were part of distributors...

The condensers that were part of distributors were to minimize arcing of the points, not for RF interference. OTOH, many cars had special spark plug wires with resistance built in to minimize...
Forum: Electric Bikes
03-27-21, 07:08 AM
Replies: 28
Views: 3,177
Posted By klevin

So they take the bike with this thing on the...

So they take the bike with this thing on the disk, and swap the disk in the convenience of their garage.
Forum: Electric Bikes
03-24-21, 03:40 PM
Replies: 45
Views: 5,105
Posted By klevin

Yes, I've always been of the view that if you...

Yes, I've always been of the view that if you want to ride fast, go on the road and battle the cars. Rail and bike trails should be taken more leisurely, since almost all are multi-use, and you...
Forum: Electric Bikes
03-24-21, 07:42 AM
Replies: 45
Views: 5,105
Posted By klevin

Guess I'm fortunate that there are no bike paths...

Guess I'm fortunate that there are no bike paths in my area. I started this thread because I anticipate travelling to some paths, mostly rail trails, and around here they aren't heavily travelled.
Forum: Electric Bikes
03-21-21, 06:36 AM
Replies: 5
Views: 6,622
Posted By klevin

I'm getting an Allant 8s Stagger this week. ...

I'm getting an Allant 8s Stagger this week. Having the cell phone display instead of a Purion is one thing that sold me on it. I'm going to use an older cell phone sitting in a drawer for the...
Forum: Electric Bikes
03-17-21, 01:31 PM
Replies: 45
Views: 5,105
Posted By klevin

Who ever said anything about going fast, much...

Who ever said anything about going fast, much less over 20mph, with kids and dogs around? You're inventing straw men to knock down.

I've found no joy over the years in riding bike paths that have...
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