Search found 7551 matches
- Feb 26 2021 10:20am
- Forum: E-Vehicles General Discussion
- Topic: Can Tesla converted to diesel?
- Replies: 15
- Views: 255
Re: Can Tesla converted to diesel?
It sounds like you could use portal axles, which will give you gear reduction plus extra ground clearance. Thank you! It is very good idea! A quick search returns with ZF electric portal axle. https://www.youtube.com/watch?v=23-i0niqDP4&ab_channel=ZFGroup 250KW / 22.000 NM! No need that yellow ...
- Feb 24 2021 6:34pm
- Forum: EBike Build Threads
- Topic: Can I and should I do this
- Replies: 12
- Views: 272
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. I've dealt with cheap and aw...
- Feb 24 2021 5:27pm
- Forum: EBike Build Threads
- Topic: Can I and should I do this
- Replies: 12
- Views: 272
Re: Can I and should I do this
Hi everyone. New here and need your help. I have an older (mid 1990s) Dean Titanium Bicycle that weighs about 12 lbs loaded. No, it doesn't. I’m thinking of making it an e bike. Don't do that. You'll only screw up a nice pedal bike, and not enjoy any of its nicer qualities after your convert it. If...
- Feb 24 2021 5:16pm
- Forum: E-Vehicles General Discussion
- Topic: Can Tesla converted to diesel?
- Replies: 15
- Views: 255
Re: Can Tesla converted to diesel?
I'm planning to built a 4x4 off road vehicle and I would like to feed all 4 DC hub motors with 50 kw diesel with DC generator. [...] but I need a very low rpm engine since tyres are big and vehicle speed will be limited to 40 mph. It sounds like you could use portal axles, which will give you gear ...
- Feb 22 2021 3:14am
- Forum: EBike General Discussion
- Topic: Help with an e-bike for my courier job
- Replies: 19
- Views: 436
Re: Help with an e-bike for my courier job
I want to go 15-20 mph for 10 hours. I'm wanting a 150-200 mile range. As others have said... naw. Instead plan on having multiple packs that you can rotate out, running one while others are charging. This is how festival pedicabbers get the endurance you're looking for. You can probably reduce you...
- Feb 20 2021 2:30am
- Forum: Battery Technology
- Topic: Trying to increase my batteries longevity but did i actually destroy it doing so?
- Replies: 22
- Views: 510
Re: Trying to increase my batteries longevity but did i actually destroy it doing so?
If the pack you have tends to become unbalanced, consider adding one of these: https://www.ebay.com/itm/4S-8S-13S-20S-Lithium-Battery-Active-Equalizer-Protection-Board-Balance-Board/383907966158 This is one example out of many such boards that are available. It will balance the cells whenever an imb...
- Feb 19 2021 2:31am
- Forum: EBike Build Threads
- Topic: New build help. Is this safe?
- Replies: 28
- Views: 835
Re: New build help. Is this safe?
Yeah, I tend to believe cheap BMSs cause about as many dangers and problems as they solve. I get the rationale for pack sellers trying to idiot-proof their product, but I'd rather move the balancing hardware off the bike and run the proven fast-blow ANN fuse for overcurrent protection. This implies...
- Feb 19 2021 2:07am
- Forum: EBike General Discussion
- Topic: Help me Electrify it!!
- Replies: 32
- Views: 993
Re: pas or no pas on cargo bike
My goals are to be able to maintain a steady speed lets say 10-12 mph max . I've had her out on the bike and have no problem getting up to speed on the flats but once I get the motor on is using just throttle to maintain speed practical? Am I going to regret not having pedal assist down the road? I...
- Feb 17 2021 8:53pm
- Forum: General Discussion
- Topic: Legends dropping like flies
- Replies: 433
- Views: 70606
Re: Legends dropping like flies
https://www.foxla.com/news/rush-limbaugh-conservative-talk-radio-pioneer-dead-at-70 https://ktla.com/news/nationworld/conservative-talk-show-radio-host-rush-limbaugh-dies-at-70/ :cry: I hope he suffered greatly for a long time. He made this country a worse place, and he made it a little better by n...
- Feb 17 2021 4:48pm
- Forum: E-Scooter and Motorcycle General Discussion
- Topic: Looking for featherweight geared hubmotors, >10kW
- Replies: 15
- Views: 493
- Feb 17 2021 3:28pm
- Forum: EBike General Discussion
- Topic: Battery continuous discharge amp and controller amp need to match?
- Replies: 31
- Views: 1143
Re: BMS and motor match up
Planning to buy 72V batteries for my 4000W motor from a distributor. The 72V 100A BMS battery description on the website says it’s suitable for motors of between 1000W-6000W. Is that normal for a 100A BMS to be compatible with 1000W-6000W motors? 72V X 100A = 7200W After efficiency losses, that cor...
- Feb 15 2021 10:54pm
- Forum: EBike General Discussion
- Topic: new eZip motor
- Replies: 6565
- Views: 531852
Re: new eZip motor
Yeah... fat chance of that. This is a country where you can buy designer drugs by the kilogram, online.latecurtis wrote: ↑Feb 15 2021 8:15pmI just saw on the news that it will soon be totally illegal to buy 18650 cells online.
- Feb 12 2021 12:45pm
- Forum: E-Scooter and Motorcycle General Discussion
- Topic: Looking for featherweight geared hubmotors, >10kW
- Replies: 15
- Views: 493
Re: Looking for featherweight hubmotors, >10kW
When comparing the weight of these different systems, remember to include the weight of ratio reduction and motor/jackshaft mountings together with the aero motor. Also be sure to derate power output in consideration of the fact that the motor won't be driving a propeller or generating very much air...
- Feb 12 2021 12:37pm
- Forum: EBike General Discussion
- Topic: ideal front fork for street: Speedway style leading axle?
- Replies: 18
- Views: 356
Re: ideal front fork for street: Speedway style leading axle?
Cannondale had some rare telescopic forks a while back that used ball bearings in there which probably helped. They used needle roller bearings, rolling on flats machined into the sliders. The two-leg Moto version used the same internal mechanism as the single slider Headshok and Lefty models. The ...
- Feb 11 2021 7:52pm
- Forum: EBike Technical
- Topic: help with id of components
- Replies: 7
- Views: 187
Re: help with id of components
That bike is so generic, it might as well be a kit homebuild. If you regard each of its components as no-name eBay stuff, you'll get on with it fine.
- Feb 11 2021 5:45pm
- Forum: EBike Build Threads
- Topic: Converting my bike
- Replies: 6
- Views: 263
Re: Converting my bike
Easiest, sure.
But I have seen all kinds of frames damaged by inadequate or inadequately tightened torque arms. Paradoxically, in this case it takes more commitment to doing the job right when you do it the easiest way.
- Feb 11 2021 3:47pm
- Forum: EBike Build Threads
- Topic: Converting my bike
- Replies: 6
- Views: 263
Re: Converting my bike
For that bike, I'd look at Bafang BBS01 or BBS02 (depending on how much power you want). Those are minimally invasive and don't pose much risk of damage to your frame.
- Feb 10 2021 11:47pm
- Forum: EBike General Discussion
- Topic: Geared Hub Motor Quality
- Replies: 66
- Views: 2663
Re: Geared Hub Motor Quality
As far as I know, MAC/BMC are the highest power capable geared hub motors out there. eZee is robust, but less so than MAC.
- Feb 09 2021 12:47pm
- Forum: EBike Technical
- Topic: USB fast-charger powered by e-bike battery
- Replies: 7
- Views: 141
Re: USB fast-charger powered by e-bike battery
I use one of these to power a chip-on-board LED that I use as a headlight: https://www.ebay.com/itm/124480545093 s-l400.jpg There's a trim pot that can be dialed to regulate output voltage from 4.5V to 30V. If all you want is 1 amp at 5 volts, and you don't need a hardware handshake, this thing shou...
- Feb 09 2021 12:36pm
- Forum: EBike Build Threads
- Topic: My first ebike build: custom-built KMX-based electric velomobile
- Replies: 11
- Views: 460
Re: My first ebike build: custom-built KMX-based electric velomobile
I'm going to try that. I plan to do long-distance touring with this thing, regardless of whether I soon end up homeless or not, so keeping this thing reliable is of utmost importance. It is neither easy to carry nor inexpensive to tow or ship. Recumbents generally are a bear to push for any distanc...
- Feb 09 2021 10:57am
- Forum: Motor Technology
- Topic: Leaf / leafmotor / leafbike high efficiency 1500w motor
- Replies: 1921
- Views: 249796
Re: Leaf / leafmotor / leafbike high efficiency 1500w motor
I lost an axle nut today. I have the cassette version and while executing regen, an axle nut on the drive side came loose Yes, that's regenerative braking all right. There's an analogous problem with crank arm bolts on fixed gear bikes. Because torque can be transmitted both ways through a fixed ge...
- Feb 09 2021 1:40am
- Forum: EBike Technical
- Topic: Do wire gauges add together for positive and negative wires?
- Replies: 9
- Views: 283
Re: Do wire gauges add together for positive and negative wires?
The voltage drop and power loss (heating) in a wire is a function of the square of the current, the gauge of the wire, and the length of the wire. Many times I've pointed out that the circuit board traces and FET legs of our controllers are many times smaller than the recommended gauge. But, they ar...
- Feb 09 2021 1:29am
- Forum: EBike Technical
- Topic: is the motor I have comon in other kits?
- Replies: 6
- Views: 158
Re: is the motor I have comon in other kits?
If the sprockets don't lie in the same plane, the chain will tend to come off. The best thing you can do is to adjust everything so the sprockets are parallel and in line with each other.
- Feb 09 2021 12:35am
- Forum: EBike Technical
- Topic: Battery cut off switch
- Replies: 11
- Views: 298
Re: Battery cut off switch
When the thing is used as a cutoff, which is to say not under load, then even a 12V rated switch will do. If you use it to quench a full power runaway condition, maybe it's better to consider it disposable like a fuse.
- Feb 08 2021 9:46pm
- Forum: EBike General Discussion
- Topic: new eZip motor
- Replies: 6565
- Views: 531852
Re: new eZip motor
I have hardwired many wires with no problems at all using zero connectors. Often I'll do it with throttles but I have done it with phase wires leaving enough length to change a tire. Yeah... no. Servicing a bike when the wheel is on a leash, or swapping a busted throttle when it's soldered on, is n...