What do you think of electric bikes?

Discussion in 'Electric Bicycles' started by Vic, Aug 4, 2016.

  1. GGH

    GGH Guest

    Lowracer, Looks like you're using the standard Bafang display. Is your "fuel gauge" any use at all with the 52V battery? Also, there are front suspension kits for the KMX trikes that are really nice. Supposedly the suspension kits make them handle much better at high speed. The dude that makes them is running 10KW on his KMX tadpole. Might help out w/your front wheel issues.

  2. Hive

    Hive Member

    Steve Best seems to have it...I am slowly moving E...from a GEBE rig, mainly because I acquired a Xootr Swift folder...if the GEBE people made a belt drive ring to fit, I honestly might have continued using the Tanaka 33, but the electrics do tempt me...simple too.

    I have to revamp my knowledge of e rigs and the folks at Grin seem to have the info needed. The power source is not as simple as gas/oil etc, but I am sure familiarity will change my view. It is always relative.
  3. Ra197769

    Ra197769 Guest

  4. chachacharles

    chachacharles New Member

    This is my new electric bike .This bike goes together easily and has plenty of power to help me up hills. That's no easy feat, since I weigh 250lbs. I think it's so fun .

    Attached Files:

  5. skyash

    skyash Active Member

    Stealth bikes are some of the best but cost like $5000 to $9000 thay hit 80kmh in like 2 seconds without any sound or pedaling unless you want to pedal then you can .look like stealth bombers all carbon
  6. FurryOnTheInside

    FurryOnTheInside Well-Known Member

    What's the power? What's the range?
  7. darwin

    darwin Well-Known Member

    For me electric isn't yet where I'd buy one. Range and price are the main reasons. I seriously considered one recently and looked for about 2 weeks before I decided no bueno on that idea. So I'm gonna settle for a nice $75 DB craigs bike, Staton kit and a HS 142f. For $375 I'm going to have a nice dependable ride instead of a $2000 electric one.
  8. KCvale

    KCvale Motorized Bicycle Vendor

    Batteries should be improving fast now.
    The Feds threw a bunch of $ the labs on the cutting edge this week.
    Basically a new firepoof battery with ceramic inside to end the exploding cell phone batteries.
    Good for the cell/laptop crowd, not to helpful for the e-MB crowd just yet.

    I love performance e-Bikes!
    Unlike gas engines, Electrics have 100% power instantly.

    This one was for a guy up north of me in the mountains and he wanted something quite he could tow a child bike trailer with so he could get his 2 kids to and from Kindergarten each day, then loose the trailer and get some fun time in ;-)


    Specialized full suspension bike with a 7-speed and dual disc brakes.
    52V 960W LI battery.
    e-Cyclone 1600W motor and Sick Bike Parts shift kit BB parts.
    Pretty much the same system on the next two, both your pedals and the electric motor power goes through the 7-speed gears to the wheel so you can change gearing on the fly, and that bike could really fly ;-}

    The freewheel BB parts means no drag when you pedal with the motor off, and when just using the motor you don't have to pedal along.
    And of course you can do both at same time.

    Heck, I bought a Fat Tire just for something different and used the same system.


    Same as the 'rocket sled' ...


    They have great power, a typical stock ~25mph 66cc direct drive can't run with them, and not because of not enough power, a 66cc has more power, it's the type of power, electric motors are 0-100% power instantly, with gears you can leave the 66cc at the line, and using gears get faster than DD 66cc can go before it's even opened up to speed.

    Though I believe electric motors are far superior mechanically to gas engines, the rub of course is their required fuel.
    Gas is cheap, portable, and readily available.
    Stored electrify isn't.

    A typical 66cc with a little 1/2 gallon teardrop tank will get you ~50mi and take 5min to refill.
    A big LI battery like my examples will only get you ~30mi and take 6+hr to refill, but man, what an awesome 30mi ride it is with electric ;-}

    I think the next 'big thing' will be what it's always been, how to save and store electricity better.
    Last edited: Nov 6, 2016
  9. chachacharles

    chachacharles New Member

    500W motor .
  10. Madd Matt

    Madd Matt New Member

    I guess I'll jump in here and expose myself to all. I started with an electric bike back in mid 2006 (Giant Suede-E the dealer did not like) I bought another battery for it and got Giant to replace the original under warranty. (36 volt nickel chemistry-NiMH- and a little less than 10 amp/hrs.). The motor was an oil filled Sanyo Dynamotor rated at 240 Watt. All in all, it was a dog. No speed, no distance. BUT; I loved it!!! I was only 3 miles from work so I rode it every day to and from home as well as home for lunch over a period of almost 4 years. I feel like I got my moneys worth out of this purchase. ($840.00 for the bike $370.00 for extra battery and $120.00 for replacement charger = $1330.00 USD total, spread out over 48 months ~ $27.70 or based on 21 riding days /month comes out to $1.32/day)
    I have to say I was not impressed with the NiMH nor with any of the batteries available in 2011, so I went with ICE for the next few years but I have become disillusioned with the 2 stroke engines as far as reliability is concerned.
    This last November (2016) I re-built the Suede-E using a battery built by EM3EV (50 Volt nominal[14S9P config. 30Q] 26.55 AmpHr) (Li Ion) I coupled that with a 1KW direct drive hub motor. WOW!! This bike will haul.
    Springfieldscooter, the bike I have put together will do 30 to 35 MPH and with the battery capacity of 1328 amp/hrs. it has a range of greater than 30 miles. I have based this on observation and estimates I have figured out to determine how far a bike will go compared to the watt/hrs. of the battery.(45 to 50 amp-hrs./mile based on how I drive and the terrain!!-----not quite the 40/40 you were looking for but I think it is close enuff!!
    The beauty of the bike is the reliability and the fact that I can keep up with traffic--for the most part--. I am well pleased with what this bike will do. It did cost a little to build. If you count the original price of the bike $840.00 and the parts from EM3EV (battery-$1039.59; charger, throttle, controller, torque arms, tester, etc.--$646.30= total of $1685.89) This gives a grand total of $2525.89 USD.
    With the battery capable of lasting 1000 cycles (full discharge and full re-charge) and if you take care of it by only charging to 75 to 80 % and not "sucking the battery dry" each time you can get almost double the cycles eg. 1800 to 2000 cycles out of the battery. This means the battery will have a useful lifetime almost 6 1/2 to 7 1/2 years..(assume 5 charges per week x 52 weeks = 260 charge cycles per year)
    This works out to each time you charge the battery (not counting the cost of electricity) it cost $1.26 to $1.40. Add the electricity per charge of 11 cents and the bike costs $1.37 to $1.51 per day. I do not know of any ICE that is this inexpensive to operate, not considering the reliability of the e-bike is far and away above the ICE.
    Thanks for letting me ramble on,
    Madd Matt
  11. Madd Matt

    Madd Matt New Member

    Give me a couple of days & I will upload some pics of the Suede-E bike I call Cruiser.
    Thanks Again Guys/Gals,
    Madd Matt
  12. KCvale

    KCvale Motorized Bicycle Vendor

    I built a 2009 Giant Suede GX back in 2010.
    It was 2-stroke though, and that was not the ideal bike.


    I bought it for the NuVinci rear hub.
    My first shifter build.
    What a pain in the butt to do, but it came out cool...


    My friends would laugh that it was a girls bike...
    Thanks OK, the guy that bought it was a survivalist and came to pick it up in this...


    Anyway, way off topic of electrics, but dun story about a Giant Suede ;-}
  13. Madd Matt

    Madd Matt New Member


    Hey guy! Don't let anyone razz you about your build! It looked to be a good clean build. You got nothin to hang your head over.
    I do agree the Giant Suede series of bikes are a little heavy and bulky, but they are rather rugged.

    Later KC,
    Madd Matt
  14. JunkyardDog

    JunkyardDog Active Member

    I believe it will be at least 50 years, maybe a lot longer, maybe never, before electric vehicles catch on. To do so they will have to have the same price, range, speed, recharge time, and longevity as todays gas powered vehicles. That would take a HUGE leap in technology. Until then, they are worthless as anything but short distance commuter vehicles, and their ridiculous price makes them worthless for even that.
  15. Frankenstein

    Frankenstein Well-Known Member

    I like to look at it like buying an Xbox... Wait a few years for what you want to get cheaper, then buy it.

    I'm seeing more and more electric hubs for electric cars, unfortunately they aren't precisely worthless, you need to take baby steps in any new technology, just be glad you aren't paying in to the prototypes and will later get a chance to buy that product at a fair price much like today's vehicles.
  16. KCvale

    KCvale Motorized Bicycle Vendor

    Don't tell Elon Musk that, he will run you over in his Tesla ;-}
  17. FurryOnTheInside

    FurryOnTheInside Well-Known Member

    That's a 751 mile trip from Tesla HQ in Palo Alto CA to J.D.'s place in Chandler AZ. The Tesla Model S with the biggest battery pack available for it only has a range of 261 miles.
    So he's safe for the next few days anyway. :)

    Bored enough to actually goggle all that. :oops:
  18. Frankenstein

    Frankenstein Well-Known Member

    I think a guy with that much money would rather just hire some guy in a dark coat and sunglasses to take care of kicking somebody's ass, I know if I had a couple billion to my name I'd be working smart not hard....
  19. bakaneko

    bakaneko Active Member

    so, there was this article a couple of months ago about the widely accredited creator of the lithium-ion battery making a next gen lithium battery that stores 3x the power and can be charged in minutes using solid-state glass something-technical or whatnot. I mean the guy is 94 and not sure if what this is... but, if true, man that would really solve short term limitations of electric vehicles.

  20. Frankenstein

    Frankenstein Well-Known Member

    Eh, only 217 years ago batteries were nothing more than wet paper and pennies stacked together and weren't even that reliable. Now we can fit a 12 volt battery that weighs a single pound in half the space and has several hundred amps available to use on just about anything...

    The technology is getting better, even lithium ion cells today are ages more advanced than what we had just in the early 2000s. Also it's not just the batteries that need improvement, an electric motor still suffers loss and can be improved along with gear boxes and all that crap. Let's not forget that we don't even have to use lithium ion, chances are with the huge diversity of chemistry we'll simply figure out a new type of battery that stores energy better than what we have now. Honestly we figured out how to freeze light particles and turned helium gas into metal, I don't doubt we have more discoveries to make.