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  1. andys

    fun new VW e-bike. folds to small footprint, charges in car

    http://www.crunchgear.com/2010/04/29/vw-rolls-out-folding-electric-bicycle/
  2. andys

    Electric Mini Coopers, great specs

    http://autos.yahoo.com/auto-shows/la_auto_show_2008/737/2010-Mini-E;_ylt=AoZ2Syreo1agYX9f4IFRomHBqaB4;_ylv=3 156 miles range, good power. factory built using AC drive components from California. I think we are getting closer to legitimate EV's that aren't only for super green folks who will...
  3. andys

    HumanCar Human-Electric Hybrid Car

    like to see them get up a 20 % grade in that thing. They claim 60 MPH speed is possible, which is not going to happen unless you have the gold medal olympic rowing team on a slight downhill. It is a fun looking experiment nonetheless. I wish they would just cool it on the ridiculous claims.
  4. andys

    EEStor ultracapacitor

    The potential military uses of their technology in submarines, etc. is where most of the stuff will go if they actually bring it to fruition. That is why Lockheed Martin already dumped millions into the company and has exclusive rights to military uses. In one way, its typical that the best...
  5. andys

    19 new 100 mile range electric cars announced

    http://www.time.com/time/business/article/0,8599,1847544,00.html?cnn=yes Looks like high gas prices may have brought the full electric car back from the dead, at least in Europe. Wonder if we'll see any of them here in the US though.
  6. andys

    who killed the electric car

    current gas prices may just end up raising it back from the dead. Nissan is working on one, and I have read about others in the works besides the Volt. If gas was this expensive a decade ago, we may have tens of thousands of electric cars on the road right now instead of the gas guzzlers the...
  7. andys

    CUT OUT ON POWER cyclone 650watt lifepo 36v 20ah new

    LIFEPO4 batteries won't catch on fire, even if they are overcharged. You can damage the cells though if they take too much charge-they puff up and smell REALLY bad. This is assuming there isn't a problem with your pack: I have had a few friends with different brands of LIFEPO4 batteries have...
  8. andys

    DiamondBack, Cyclone 650watts and Dewalt A123 packs

    Wow, that crank arm does stick out more than I thought it would need to. I think that would be hard for me to get used to and may feel weird on a longer ride.
  9. andys

    EEStor ultracapacitor

    I am actually glad for once the military has great interest in the EEstor technology, because it may mean they actually bring it to market if the end product does get finalized and tested and works as the theory describes. Otherwise, history is full of EEstor examples that got bought out and...
  10. andys

    DiamondBack, Cyclone 650watts and Dewalt A123 packs

    You can find seatpost shocks in any size, even 25.4mm (1 inch). It will have the size on the bottom of your stock seatpost. You have to search hard, but you can also still find a good basic front suspension fork in 1 inch threaded size, which is what your bike probably has. I just got one for...
  11. andys

    The cost of an EV conversion

    Both Thunderstruck motors and Doug at EV tech have 100AH affordable very high quality LIFEPO4 batteries (not Thunderpower) that have been working very well for them. They don't have them listed at their web sites-you have to call them. I priced an 84 volt system 100AH and I think it was about...
  12. andys

    203MM Avid BB7 on sale $39.99

    Guys run those 203mm disc on downhill mountain bikes that go as fast as an e-bike and weigh nearly as much. If they can stand up to that kind of abuse,I am not worried about a failure slowing down my e-bike under normal use. I like my Avid BB7 203mm set up, and it has much more stopping power...
  13. andys

    The cost of an EV conversion

    If you convert a small light weight car, the costs go down significantly. weight is a huge obstacle to performance. A fellow in Europe converted a Fiat 500 and is getting 60 MPH and over 60 mile range from a 72V 100AH lithium battery and old DC motor. I know a source for 100AH LIFEPO4...
  14. andys

    DiamondBack, Cyclone 650watts and Dewalt A123 packs

    You'll end up needing two electric bikes anyway, otherwise, how can anyone but Lance Armstrong go for a ride with you? I came very close to getting that Fantom bike and have recommended it to a few people for an e-bike. It is one of the few FS bikes that has some room for batteries. It...
  15. andys

    203MM Avid BB7 on sale $39.99

    I got those brakes from them and they are very strong-stopping power is noticeably better than with the 160mm rotor. Took about 50 miles to bed in fully, but now they stop on a dime with terrific modualtion. You need to have a strong fork to run those on the front, as they generate a lot of...
  16. andys

    LiFeP04 8AH vs Lithium Polymer 10AH

    whose batteries? Not all LIPo and LIFEPO4 batteries are the same, so it is hard to compare two unknown brands. In general, the LIPo have a bit higher output and are smaller and lighter, but do not have the life span of the LIFEPO4 batteries. The LIPo also are more prone to self destructing...
  17. andys

    DiamondBack, Cyclone 650watts and Dewalt A123 packs

    The BMC's actually run a 7 speed freewheel. Your 9 speed deraileur will work with the 7 speed freewheel. but you have to adjust the limit screws. The rear shifter can be replaced with a 7 speed if you want to, but it will work as fine too, and of course with 2 less speeds. I think in the long...
  18. andys

    Ping Battery vs others

    Ping Made a friend of mine a 48V 25AH pack that can take 50 amps continuous with a special higher quality BMS. You may want to ask him about his custom 48V 25AH pack for use with the big hub motors.
  19. andys

    Brushless Geared hubmotors: BIG list & details

    He is giving the weight for the complete assembled rear wheel when he says 12 pounds. The same wheel and spokes with a Crystalyte 4000 series hub weights about 22 pounds for a comparison.
  20. andys

    Have you ever hated your ebike?

    At first when I built my 2 e-bikes, I wanted more power, so I wasn't totally happy with them. Then I crashed a bike at only 18MPH and got a first hand experience of the violent power of kinetic energy! I am glad I wasn't going 28MPh when I went down. Two months later, I am still not 100% back...
  21. andys

    How Fast is your Ebike versus How Fast do you want it?

    My one bike will do 43 KPH, the other 35 KPH. My 35KPH is a good mountain bike with quality components and is used mostly on dirt. I seldom go full speed on the dirt with it though, because of traction in the corners. The other bike is a folding mountain bike with 20 inch wheels run at 60...
  22. andys

    DiamondBack, Cyclone 650watts and Dewalt A123 packs

    A lot of folks have bought bikes from Bikes direct, and I have heard good feedback on that seller. http://www.mtbr.com/cat/bikes/xc-suspensio/motobecane/700ds/PRD_364041_1526crx.aspx http://www.mtbr.com/cat/bikes/xc-suspensio/motobecane/fantom-comp-ds/PRD_364048_1526crx.aspx
  23. andys

    Mtn Bike Advice needed; Help choose my next ebike

    A front hub motor on an off road mountain bike may want to spin the front tire when climbing on dirt trails. I just went through wanting the same thing you do, and ended up going with a vintage Trek 950 single track steel frame bike. the 930 and 970 will work too. here is a link to one for...
  24. andys

    RC battery!! Is This Battery Applicable??

    I am using an RC LIPO as a booster pack to get another 11.1V 10AH added to my 37 Volt 10.5AH Lithium pack I got from E-Bikes.CA. So far it has worked out well for that purpose. I have it wired in like a "turbo" that I can switch on when extra power is needed. As an only power source though, I...
  25. andys

    Dual Geared Hubs vs. Nemesis Hill (25% grade)

    Sounds like what you are looking for is more of an electric motorcycle. I have heard good things about the hill climbing ability of the one in the link below. They claim it can do a 30% grade. It uses a 6 phase brushless motor rated conservatively at 3000 watts...
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