Search found 1081 matches

by mvly
Jun 25, 2017 11:50 pm
Forum: Items for Sale - Used
Topic: Vector e bike 6000w for sale (update pictures) sold!
Replies: 8
Views: 1374

Re: Vector e bike 6000w for sale

I guess someone needs to ride it home from the central valley. LOL. It is a good deal though for 2K. But there is definitely some improvements to make it turn key. This would need adappto controller and bms and it should be able to do 50 miles plus before charging. It should make for a fun road trip...
by mvly
Jun 19, 2016 9:30 am
Forum: Items for Sale - New
Topic: CitiGo Urban - WORLD'S BEST DESIGNED E-SCOOTER
Replies: 16
Views: 2038

Re: CitiGo Urban - WORLD'S BEST DESIGNED E-SCOOTER

No suspension. Around 22lbs.

Not bad. But i think i rather pay for the etow and call it a day. It is a much better scooter with full suspension and it is around $850-$900 here in usa if you can get discount.
No scooter is perfect. The etow has its own issues, but overall it is pretty good.
by mvly
Mar 29, 2016 7:16 pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 2614

Re: Stack-able Low Cost Balancing BMS

To the "Quiescent current" part - it is a more thoughtful approach to introduce a configurable disconnect timer, rather than than pinch pennies trying to extend a shelf-life of a battery with a hooked-up BMS, IMHO. What is BMS going to do if it senses a battery voltage going down ? Zilch, because i...
by mvly
Mar 29, 2016 3:22 pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 2614

Re: Stack-able Low Cost Balancing BMS

Let's turn those specs into engineering terms for the fun of it: 13S to 24S BMS would probably need to be divisible by 12 or at least 4. My take is a stackable BMS of 4s or 6s. 10Ah to 20Ah Does not really matter. Though it will drive your design specs below Discharge Currents from 20A - 80A nominal...
by mvly
Mar 29, 2016 2:59 pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 2614

Re: Stack-able Low Cost Balancing BMS

I think the problem is cheap.

I have looked and specced out a possible BMS designed that would work, but cost would be high, unless I can get huge quantities.
by mvly
Nov 26, 2015 1:49 pm
Forum: Items for Sale - New
Topic: 63mm longboard Hub motors for sale
Replies: 1
Views: 321

Re: 63mm longboard Hub motors for sale

how hard is it to replace the rubber sole on the wheel?
by mvly
Oct 26, 2015 9:28 pm
Forum: Items for Sale - New
Topic: Sold
Replies: 5
Views: 531

Re: Flatpack2 1800w 53.5v power supply $100 shipped to usa

Any way to keep the power to around 1400W? Here in the US, the max power typical oulet is limited to 15A at 120VAC. To prevent the breakers from tripping we need to keep it at 80% or 1400W.
by mvly
Oct 21, 2015 11:17 pm
Forum: Items for Sale - New
Topic: Vector e-bike Frame 599$ /Adaptto/Parts WORLDWIDE
Replies: 2243
Views: 252707

Re: Vector e-bike Frame 625$ /MAX-E/FORK/SHOCK/MOTOR/BATTERY

Any words on the specs on the tyhoon v2?
by mvly
Oct 19, 2015 2:52 am
Forum: Items for Sale - New
Topic: Vector e-bike Frame 599$ /Adaptto/Parts WORLDWIDE
Replies: 2243
Views: 252707

Re: Vector e-bike Frame 625$ /MAX-E/FORK/SHOCK/MOTOR/BATTERY

Artur,

Any specs on the Typhoon V2.0? I am curious about the motor and battery on this beast. Also what is the fastest speed and if it will fit someone smaller in size.
by mvly
Oct 06, 2015 9:06 am
Forum: EV Business World
Topic: Is there room for a new electric bicycle company in the US?
Replies: 18
Views: 1961

Re: Is there room for a new electric bicycle company in the

It really depends on the market. You wouldnt start an ebike company in the midwest where it gets cold and hot and everything is miles out. You would ideally find the market that needs such device. I.e. congested no parking easy bike parking safe slow traffic area. Then ask yourself why a regular bik...
by mvly
Oct 05, 2015 2:02 am
Forum: E-Bike General Discussion
Topic: Falco e-Motors
Replies: 489
Views: 55712

Re: Falco e-Motors

That link you posted is really hard to navigate and tell where you are in it... This is the one I was talking about. http://s29.postimg.org/j6pv1n8vb/falco_no_tomorrow.jpg Let me address falco motor on some of these advertising point. Torque Density --- I am not convinced. Maybe more flat torque de...
by mvly
Aug 31, 2015 9:18 am
Forum: Items for Sale - Used
Topic: New Quilbix Raptor Complete Rolling Chassis (three)
Replies: 17
Views: 2234

Re: New Quilbix Raptor Complete Rolling Chassis (three)

Damn i just wiped out my savings on something else recently. Otherwise this would be my next bike and the current setup would be sold off. Good deal for any who is looking for a high power setup.

Can the rear tire be replaced easily? I.e. when you have a flat.
by mvly
Jun 16, 2015 2:58 pm
Forum: Items for Sale - Used
Topic: 70mph Vectrix VX-1 maxi-scooter with LifePO4 upgrade
Replies: 27
Views: 4129

Re: 70mph Vectrix VX-1 maxi-scooter with LifePO4 upgrade

I would apply but dont have the m1 license. So i am out of thr running. Seems like an excellent commuter tool for anyone. Good luck for those who applied and make sure you dont kill yourself when playing with this. Hahah
by mvly
May 14, 2015 9:47 pm
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1418

Re: electric Velomobile max speed record?

Thanks for the links. Really the only reason is not how fastbut how long and far. With maybe a reduction in air drag, you can go for longer and use less battery this is better fit for touring. But yes i wonder ehat the max record is for electric. There is a record for electric car, and it has all th...
by mvly
May 05, 2015 9:59 am
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1418

Re: electric Velomobile max speed record?

The trisled is a good and cheap start but it is not full suspension. I was considering the quest and using the ecospeed mount mid-drive. But those two combo will set me back more 15K USD no counting the extra stuff like CA controller battery etc. Man making a really efficient transportation can get ...
by mvly
May 04, 2015 10:25 pm
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1418

electric Velomobile max speed record?

I am rethinking a touring trip with a velomobile to gain more aero dynamic advantage. Has anyone electrify a velomobile? What are the things to watch out for? What is the max speed you can obtain? Mid-drive vs hub drive. Pedal assist or just pure electric? Bigger battery or smaller and pedal assist ...
by mvly
Apr 24, 2015 2:54 pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1108
Views: 121350

Re: JP spot welder

My question is if the FETs goes out, do you need to replace all the FETs or just the one that goes out. If just one, how do you determine which one it is? I think it would be more economical like someone here pointed out to provide extra FETs or extra discharge boards with or without FETs populated....
by mvly
Apr 23, 2015 10:05 pm
Forum: E-Bike General Discussion
Topic: New Electric Velomobile In Town - Virtue Pedalist
Replies: 10
Views: 2512

Re: New Electric Velomobile In Town - Virtue Pedalist

I am also tempted to put down some mo ey to support them, but even at 3000 it is a bit risky for what i have plan for it. Here is why: 1) heavy. 100+lbs and this is pretty heavy without motor battery etc. 2) aero is not that great. If you plan to ride it in the city and short commute, then fine, oth...
by mvly
Apr 20, 2015 11:50 pm
Forum: Items for Sale - New
Topic: "Sondors" ebike - new fat tire entry
Replies: 2163
Views: 175979

Re: "Storm" ebike - new fat tire entry

Not sure if this is considered morally acceptable, but in a way, I want Sondors to take the money and run. Here is why: 1) It seriously put a dent in the way Indiegogo does business. Unlike Kickstarter, they do not check or even verify the validity of the campaign. Hence there are more scams on inde...
by mvly
Apr 18, 2015 9:01 pm
Forum: E-Bike General Discussion
Topic: Drag race Tesla, Zero, Energica etc
Replies: 12
Views: 2266

Re: Drag race Tesla, Zero, Energica etc

I have to admit the model s impressive. It was keeping up with thd bike for most of the track until the near end. I guess if tesla can work on upping the 30-60mph acceleration, it might keep up with the bike. But yeah that much power on a bike that can flip if you throttle too much takes guts to rid...
by mvly
Apr 14, 2015 12:22 am
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1118
Views: 149550

Re: QS 500W-10kW Electric Spoke Hub Motor

Any good 3000KW+ motor in 135mm dropout? Do you mean 3000W? If yes, it's not possible to make 3000W motor in 135mm dropout. As the maximum magnet height is 28mm. The rated power is 500W, peak power could be about 3000W for few second. P.S.: Some supplier might call it 3000W, as the peak power might...
by mvly
Apr 13, 2015 10:27 pm
Forum: E-Bike General Discussion
Topic: Need a reliable electric bike for daily commute to work! $4K
Replies: 13
Views: 1105

Re: Need a reliable electric bike for daily commute to work!

If you want a reliable bike just go slow. Most of the problems people are having here are related to high power ebikes. Over engineer and keep the power low (and speed low) and you will be riding for a long time without problems. Now you do have to take jnto consideration the usual bike related prob...
by mvly
Apr 13, 2015 10:24 pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1118
Views: 149550

Re: QS 500W-10kW Electric Spoke Hub Motor

Any good 3000KW+ motor in 135mm dropout?
by mvly
Apr 13, 2015 2:39 am
Forum: E-Bike General Discussion
Topic: At what capacity loss would you consider replacing batteries
Replies: 10
Views: 600

Re: At what capacity loss would you consider replacing batte

I have hobbyking nanotech lipo and it is roughly 50%-60% now. It has been more than 3 years and it still go on chucking. Since it is lipo the internal resistance is still in check. It does sag a bit compared to when it is new but recovers fine and still provide at least 50% easy assuming you fully c...
by mvly
Apr 12, 2015 12:18 pm
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5175

Re: Recumbent Bike/Trike Touring experience?

@ marcibs,

Thanks for the recommendation. Tubeless seems a bit messy. How well do they work compared to inner lining with thick inner tube?

@ecross

Do the gaadi come in 20 inch version? I plan to build my rear in 20 inch version presta.