Search found 925 matches

by LeftieBiker
Mar 06 2021 12:57am
Forum: E-Scooter and Motorcycle Build Threads
Topic: My first EV conversion: '69 Honda CA160 "Baby Dream"
Replies: 41
Views: 1684

Re: My first EV conversion: '69 Honda CA160 "Baby Dream"

If those battery elements are supposed to be compressed (what I think I have read also in other battery build threads)- why do you hold them together only by some cable straps, and not by some more rigid construction, like two boards connected by threaded rods, or something like that? Would this be...
by LeftieBiker
Mar 05 2021 6:16pm
Forum: EBike General Discussion
Topic: Porsche announced 2 ebikes: Sport and Cross
Replies: 15
Views: 202

Re: Porsche announced 2 ebikes: Sport and Cross

Speaking of extraordinary design, take a look at the sculpting of the Porsche "sport" bike's handlebar with everything hidden within. Frankly, a work of art, Nobody does that, much less the Chinese. I guess I'm just more concerned with function over form. If I were younger and healthier m...
by LeftieBiker
Mar 05 2021 6:08pm
Forum: EBike General Discussion
Topic: Porsche announced 2 ebikes: Sport and Cross
Replies: 15
Views: 202

Re: Porsche announced 2 ebikes: Sport and Cross

SlowCo wrote:
Mar 05 2021 5:25pm
LeftieBiker wrote:
Mar 05 2021 3:53pm
I think that if I won the lottery and decided to buy a $9k ebike, it would have a rear suspension.
It has rear suspension... :roll: :lol:
My bad. I looked at the first photo, where the rear suspension is obscured, and assumed that the "Sport" was a hardtail.
by LeftieBiker
Mar 05 2021 3:53pm
Forum: EBike General Discussion
Topic: Porsche announced 2 ebikes: Sport and Cross
Replies: 15
Views: 202

Re: Porsche announced 2 ebikes: Sport and Cross

I think that if I won the lottery and decided to buy a $9k ebike, it would have a rear suspension. Also adjustable handlebars. It would make much more sense to buy a Frey CC and slap a Porsche sticker on it. Speaking of which, it will be pretty embarrassing for Porsche if the two bikes (or three, to...
by LeftieBiker
Mar 05 2021 8:56am
Forum: EBike General Discussion
Topic: What to do: Repair-Recell-replace battery, new kit or what?
Replies: 24
Views: 547

Re: What to do: Repair-Recell-replace battery, new kit or what?

1/8" bits (and whatever the metric equivalent is) and smaller are easy to break even when fairly high quality. Steel has its limits.
by LeftieBiker
Mar 04 2021 10:32pm
Forum: EBike General Discussion
Topic: What to do: Repair-Recell-replace battery, new kit or what?
Replies: 24
Views: 547

Re: What to do: Repair-Recell-replace battery, new kit or what?

If there is enough of the screw head left, or if the screw shafts are thick enough, screw extractors can be better than a drill bit. They are usually better than a dull, cheap drill bit. ;)
by LeftieBiker
Mar 04 2021 7:12pm
Forum: Polls & Surveys
Topic: Help UMN Researchers with E-Scooter Design
Replies: 9
Views: 216

Re: Help UMN Researchers with E-Scooter Design

Just off the top of my head: if you want to make escooters safer with an onboard AI, have it interactively control braking. There are two major issues here: braking too hard (often because of a "grabby" brake) and getting tossed off the scooter, and loss of traction while braking. So imple...
by LeftieBiker
Mar 03 2021 2:21pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 39
Views: 1242

Re: Conversion of a Bultaco Sherpa

But how would a slow-medium-high speed switching work? For my purpose (a lot of dirt track driving with my sighthound) this could maybe make sense ...
The controller has to have that capability. Some of them have one or more extra wires for limiting speed.
by LeftieBiker
Mar 01 2021 2:48pm
Forum: EBike General Discussion
Topic: What to do: Repair-Recell-replace battery, new kit or what?
Replies: 24
Views: 547

Re: What to do: Repair-Recell-replace battery, new kit or what?

First, ask yourself this question: "Am I happy with this bike when it works?" If yes, then just move on to replacing the battery. You likely have one or more bad (not dead) cells that are producing a voltage high enough to prevent the charger from starting, but that collapses under any loa...
by LeftieBiker
Feb 28 2021 7:29am
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 39
Views: 1242

Re: Conversion of a Bultaco Sherpa

More likely it is three power levels. Reverse is rarely implemented, as is "Neutral."
by LeftieBiker
Feb 26 2021 2:44pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 39
Views: 1242

Re: Conversion of a Bultaco Sherpa

The word you are looking for is "play" and no, you don't want any of that. ;)
by LeftieBiker
Feb 26 2021 6:01am
Forum: E-Scooter and Motorcycle Build Threads
Topic: My first EV conversion: '69 Honda CA160 "Baby Dream"
Replies: 41
Views: 1684

Re: My first EV conversion: '69 Honda CA160 "Baby Dream"

As a compromise, try fabricating a custom padded & ventilated charger carrying box on the bike, so you can take the charger along OR leave it home, as needed. Second choice would be a cargo box of some sort.
by LeftieBiker
Feb 25 2021 6:17pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Should the charger be "on-board" or not?
Replies: 6
Views: 154

Re: Should the charger be "on-board" or not?

For larger EVs, an onboard charger is a great idea. You can use an adapter to charge from EV charging stations, as long as the charger can accept 240 volts. For little EVs it can make as much sense to just carry the charger with you as needed. Do you think that you'll be needing to charge away from ...
by LeftieBiker
Feb 24 2021 11:28pm
Forum: Help wanted & offered
Topic: ES is looking for a volunteer moderator
Replies: 3
Views: 103

Re: ES is looking for a volunteer moderator

I could probably do it, but I'm stretched a little thin, moderating most of the day at the Leaf site. If you don't get a good volunteer, PM me.
by LeftieBiker
Feb 24 2021 5:40pm
Forum: EBike Build Threads
Topic: Can I and should I do this
Replies: 12
Views: 324

Re: Can I and should I do this

with disc mounts if you must have disc brakes (they don't improve anything except your bike's cleanliness). Not to restart that old argument, but it depends on what you are starting with. Take a spin on an EZIP trails with rim brakes, and you will appreciate disks more. Even perfectly adjusted, tho...
by LeftieBiker
Feb 23 2021 11:31pm
Forum: EBike Non-hub Motor Drives
Topic: Is there any advantage to 72v?
Replies: 3
Views: 236

Re: Is there any advantage to 72v?

Im ready to start building my battery pack. Bike is a basic hybrid bike ( road bike with some mountain bike traits). No shocks front or back. Motor is GNG cyclone clone with their included controller (cheap). I only intend to go maybe 15-20 mph, but would like a little reserve power. I dont want to...
by LeftieBiker
Feb 23 2021 9:05pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Converted '61 VBB Vespa
Replies: 3
Views: 108

Re: Converted '61 VBB Vespa

You don't need an installed J-1772 port. You can use a standalone adapter that has the J-1772 socket on one end and a NEMA socket on the other.
by LeftieBiker
Feb 23 2021 6:54pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Converted '61 VBB Vespa
Replies: 3
Views: 108

Re: Converted '61 VBB Vespa

If the charger is from the UK then it may well accept up to 250 volts. If so you can use a J-1772 to NEMA plug adapter to charge faster at EV charging stations, as I do with my Vectrix.

Very nice scooter.
by LeftieBiker
Feb 23 2021 3:57pm
Forum: Polls & Surveys
Topic: ebikes.com or endless-sphere.com
Replies: 60
Views: 1041

Re: ebikes.com or endless-sphere.com

I think that if you want to stay with an obscure name that doesn't tell people what the site is about, but takes a single small step in that direction from endlessshpere.com, then magneticmotion is just dandy.
by LeftieBiker
Feb 22 2021 1:54pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 39
Views: 1242

Re: Conversion of a Bultaco Sherpa

The three way switch on the throttle is probably to select 3 speed and/or power limits from the controller. I'd be wary of a 'matched set' that has mismatched connectors and wire colors.
by LeftieBiker
Feb 22 2021 1:48pm
Forum: Items Wanted
Topic: Ebike parts in upstate NY
Replies: 2
Views: 104

Re: Ebike parts in upstate NY

If you are interested in Old Tech, I can set you up with several EZIP Trailz bikes, with spare parts and tires, and battery cases, for virtually nothing. I've moved on from them, but they are good, tough bikes that can climb hills that cheap hubmotors can't manage. I live in the Saratoga Springs are...
by LeftieBiker
Feb 22 2021 8:49am
Forum: Polls & Surveys
Topic: ebikes.com or endless-sphere.com
Replies: 60
Views: 1041

Re: ebikes.com or endless-sphere.com

How many ebikes would you like? Why is there a s at the end of ebike? I like short domain names. How about ebike.com
There is discussion about quite a few different ebikes.
by LeftieBiker
Feb 22 2021 8:47am
Forum: E-Scooter and Motorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 39
Views: 1242

Re: Conversion of a Bultaco Sherpa

I wanted to make the conversion with 48 V and ordered the components for that. The Controller has a decal saying 40-90V, so this seems OK. But on the motor is a print saying "72V-3000W". Does this indicate the MAX Voltage possible, and I can use it also with only 48V, or did they send me ...
by LeftieBiker
Feb 22 2021 5:14am
Forum: EBike Troubleshooting
Topic: Kids 500w fun bike keeps cutting out
Replies: 22
Views: 440

Re: Kids 500w fun bike keeps cutting out

Looks like the 4 lowest cells have to go. Maybe the 6 lowest reading. A better test, though, is to run the pack low or to cutoff, then test the voltage. That will reveal the weakest cells more accurately. If those cells have really been in there since 2008 (which I seriously doubt) then they deserve...
by LeftieBiker
Feb 20 2021 8:19pm
Forum: Polls & Surveys
Topic: ebikes.com or endless-sphere.com
Replies: 60
Views: 1041

Re: ebikes.com or endless-sphere.com

On the one hand, ebikes.com would be much easier to suggest, type, search, etc. On the other hand, think of all the casual dumbasses, trolls and spammers who would suddenly appear. I agree that we should consider whether we want more people here, or if we want people who are genuinely interested in ...