Search found 913 matches

by mvly
Jun 25 2017 11:50pm
Forum: Items for Sale - Used
Topic: Vector e bike 6000w for sale (update pictures) sold!
Replies: 8
Views: 1560

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 9:30am
Forum: Items for Sale - New
Topic: CitiGo Urban - WORLD'S BEST DESIGNED E-SCOOTER
Replies: 16
Views: 2362

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 7:16pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 3021

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 3:22pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 3021

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 2:59pm
Forum: Battery Technology
Topic: Stack-able Low Cost Balancing BMS
Replies: 36
Views: 3021

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
Oct 21 2015 11:17pm
Forum: Items for Sale - New
Topic: Vector Storm e-bike Frame 299€ / Parts WORLDWIDE
Replies: 2312
Views: 295722

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 2:52am
Forum: Items for Sale - New
Topic: Vector Storm e-bike Frame 299€ / Parts WORLDWIDE
Replies: 2312
Views: 295722

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 9:06am
Forum: EV Business World
Topic: Is there room for a new electric bicycle company in the US?
Replies: 18
Views: 2335

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 2:02am
Forum: E-Bike General Discussion
Topic: Falco e-Motors
Replies: 491
Views: 61344

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
Jun 16 2015 2:58pm
Forum: Items for Sale - Used
Topic: 70mph Vectrix VX-1 maxi-scooter with LifePO4 upgrade
Replies: 27
Views: 4965

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 9:47pm
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1698

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 9:59am
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1698

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 10:25pm
Forum: E-Bike General Discussion
Topic: electric Velomobile max speed record?
Replies: 14
Views: 1698

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 2:54pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1131
Views: 141649

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 10:05pm
Forum: E-Bike General Discussion
Topic: New Electric Velomobile In Town - Virtue Pedalist
Replies: 10
Views: 2753

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 18 2015 9:01pm
Forum: E-Bike General Discussion
Topic: Drag race Tesla, Zero, Energica etc
Replies: 12
Views: 2464

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 12:22am
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1160
Views: 180278

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 10:27pm
Forum: E-Bike General Discussion
Topic: Need a reliable electric bike for daily commute to work! $4K
Replies: 13
Views: 1247

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 10:24pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1160
Views: 180278

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

Any good 3000KW+ motor in 135mm dropout?
by mvly
Apr 13 2015 2:39am
Forum: E-Bike General Discussion
Topic: At what capacity loss would you consider replacing batteries
Replies: 10
Views: 644

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 12:18pm
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5766

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.
by mvly
Apr 11 2015 10:28am
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5766

Re: Recumbent Bike/Trike Touring experience?

One more issue that just occurred to me. Flat tires. How would one deal with flat tires. Last time I had a flat on my ebike, I had to flip the bike to reload the wheel back onto the dropout. I don't see me flipping the trike if that occurs. How would you guys deal with flat tires on this thing?
by mvly
Apr 11 2015 12:48am
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5766

Re: Recumbent Bike/Trike Touring experience?

In my experience electrifying a bent makes a huge difference in riding ease, the low speed wobblies while taking off and climbing steeper hills become a non-issue, it is also no longer necessary to shift many gears down at every stop, creeping in traffic is a simple matter of letting your feet slid...
by mvly
Apr 10 2015 11:15am
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5766

Re: Recumbent Bike/Trike Touring experience?

Hi mvly, please send more infos to your trip, this is very interesting for me because my e-Trike is ready for +200km with my setup. -attached you will find a pic. from my e-Stein Trike Wild-One with 2x black outdoor cases for 2 x 12S8P Sony setup and my new outdoor cases are ready for 2 x 12S16P. -...
by mvly
Apr 09 2015 11:58pm
Forum: E-Bike General Discussion
Topic: Recumbent Bike/Trike Touring experience?
Replies: 27
Views: 5766

Re: Recumbent Bike/Trike Touring experience?

Hi mvly, in the season 2014 I drove a looklike setup like you plan for your 200 miles ride a day. I use a HPvelotechnik and a Stein-WO Trike. Attached you will find some pics from the Trikes. Whitch Trike models will do you use for your trip? For this, HP and Stein I can give you a lot of tips for ...