Search found 913 matches

by LeftieBiker
Feb 25 2021 6:17pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Should the charger be "on-board" or not?
Replies: 3
Views: 45

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: 79

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: 255

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: 153

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: 83

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: 83

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: 57
Views: 856

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: 24
Views: 777

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: 79

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: 57
Views: 856

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: 24
Views: 777

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: 16
Views: 273

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: 57
Views: 856

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 ...
by LeftieBiker
Feb 20 2021 4:02pm
Forum: EBike General Discussion
Topic: What are the best ways to build a two wheel hub mounts e-bike?
Replies: 13
Views: 431

Re: What are the best ways to build a two wheel hub mounts e-bike?

I'm just thinking out loud, but would a rear geared motor and a front DD motor solve the steering problem? That slow, weak power delivery at low throttle would actually be an advantage in this case, as the front wheel could provide traction but would be more reluctant to break that traction - again,...
by LeftieBiker
Feb 19 2021 4:52pm
Forum: Battery Technology
Topic: Trying to increase my batteries longevity but did i actually destroy it doing so?
Replies: 22
Views: 503

Re: Trying to increase my batteries longevity but did i actually destroy it doing so?

Rather than almost never charging passed 90%, what would work better with cheap cells is to usually charge to 100% - but only do it right before a ride. That way the cells aren't stressed by sitting for long periods at 100%, but they do get equalized often - assuming, as noted, that your BMS actuall...
by LeftieBiker
Feb 15 2021 5:43pm
Forum: E-Scooter and Motorcycle Build Threads
Topic: Yamaha YZF250F
Replies: 68
Views: 3391

Re: Yamaha YZF250F

Usually even short chains in motorbikes' combustion engines have tensioners. For example the camshaft chain of my Suzuki GSX400 : That's because no one wants to have to open up an engine to make frequent cam chain tension adjustments. A drive chain that can be adjusted easily doesn't need a tension...
by LeftieBiker
Feb 15 2021 3:51pm
Forum: EBike General Discussion
Topic: Best material for battery impact shock absorption?
Replies: 31
Views: 2449

Re: Best material for battery impact shock absorption?

I suppose that you could embed a little thermostat-controlled computer case fan in the foam, with a second vent hole and an On-Off switch...
by LeftieBiker
Feb 13 2021 3:23pm
Forum: EBike General Discussion
Topic: Need nice seat for e-MTB. Suggestions?
Replies: 10
Views: 266

Re: Need nice seat for e-MTB. Suggestions?

I've tried quite a few seats because of physical issues I have. If you can be more specific about what you like I may be able to help. In general, the hybrid/cruiser type seats, with built-in springs, work well with a suspension seat post if you can get it to fit. Depending on how stiff the springs ...
by LeftieBiker
Feb 12 2021 2:02pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Chinese Retro Scooter - Running at 72v versus 60v
Replies: 28
Views: 644

Re: Chinese Retro Scooter - Running at 72v versus 60v

You might want to try that first ride with no more than 50% charge...
by LeftieBiker
Feb 12 2021 5:51am
Forum: EBike General Discussion
Topic: Seeking advice for commuter e-bike setup
Replies: 21
Views: 506

Re: Seeking advice for commuter e-bike setup

No, you posted them to his first thread, which he rudely abandoned those already helping him and started a whole new one for no reason, since he was already being helped and knew it. I merged them together, so that those helping him can see all his posts and info. Hopefully he keeps his project to ...
by LeftieBiker
Feb 11 2021 10:58pm
Forum: EBike General Discussion
Topic: Seeking advice for commuter e-bike setup
Replies: 21
Views: 506

Re: Seeking advice for commuter e-bike setup

Mods...??? I posted several replies to this thread, and they are now vanished.
by LeftieBiker
Feb 11 2021 6:19am
Forum: EBike General Discussion
Topic: Seeking advice for commuter e-bike setup
Replies: 21
Views: 506

Re: Advice on commuter ebike setup

What kind of battery would you recommend if I went with a 500W geared rear hub motor? Is Bafang the best option or are there alternative brands I should consider? I can't really suggest a specific battery. Just look for one from a reputable dealer or builder, that uses name brand higher grade cells...
by LeftieBiker
Feb 11 2021 12:06am
Forum: EBike General Discussion
Topic: Seeking advice for commuter e-bike setup
Replies: 21
Views: 506

Re: Advice on commuter ebike setup

The decision on what kind of hub motor rests on the terrain. If you have substantial but not Monster hills on the route, then a geared 500 watt motor should work well. If you have long, steep hills, then a more powerful direct drive motor would likely be better.* Only use a 500-750 watt direct drive...
by LeftieBiker
Feb 10 2021 2:59pm
Forum: General Discussion
Topic: List of small hatchback cars
Replies: 148
Views: 12245

Re: List of small hatchback cars

All good suggestions. Except not too sure about "rev the engine". 2000 to 3000 RPM isn't going to hurt it, or even make much noise. You do it to bring the alternator speed up into its optimum range, to charge the battery a bit before shutting the car off. Just remember to let it drop to i...
by LeftieBiker
Feb 09 2021 3:35pm
Forum: Battery Technology
Topic: 12S Bluetooth Smart BMS from LithiumBatteryPcb has probably drained my Battery
Replies: 9
Views: 262

Re: 12S Bluetooth Smart BMS from LithiumBatteryPcb has probably drained my Battery

Disconnecting the BMS and leaving the state of charge at roughly 50% is the way to go. If you keep it fully charged, the battery will degrade faster. The documentation for the BMS should have warned you not to leave the bike sitting unused for months with the BMS connected.