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  1. S

    Are my old batt chargers worth selling?

    Have a nice sunpower 12V/30A supply and venom 6S balance charger but don't know about my old, 3-4yrs? EMC 400 chargers and an EMC 600 watt charger. They all have Anderson connectors, 1 for 15S 63.2V/5A, 1 for 18S 75.6/3.67A, and the 600 watt is to fast charge the 18S up to73.8V/6A. Then can be...
  2. S

    2 Stroke E-chaser

    August, time to vamp up our race bikes! The E-crowd is talking up Sept15 as ‘the world championship’ of motorized bikes. I even heard there was some crazy guy driving down from Michigan. So, a day to build, a day to post, here goes: For me, running mid-pack with a tire just in front, someone...
  3. S

    Deadly Looks; Me an' the Lipos' Gonna Die

    Got the proper freewheels and finished up 2 bikes to race Grange this Sat April 7. But. . . my lo-power (2K) racer won't start. The infinineon controller gets pretty warm, and the 9 continent motor lurches a couple of inches when the CA is reset but nada. The CA reads 74.5Volt, right on for...
  4. S

    E-bikes running with the Gas-bikes

    While browsing the HobbyKing Turnigy motors, noticed that the 80-100 was compared to 80cc gas. And what struck me was the 80-100 could give some value with 8 & 0 as the 1st 2 digits. https://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=5142 After talking with a few other bike...
  5. S

    What motor is on this 'Green Cruiser?'

    I'm guessing the wheelbase is long at 45" or more. But 2 calls and the sales people know nothing about the bike. What motor have we here? http://electricbikes.cc/Green-Cruiser-Tornado-Tornado-Green-Cruiser.htm
  6. S

    Turnigy/Astro magnet article from Wikipedia

    I've read that Turnigy RC motors use 'Neodymium' magnets while Astro 32XX motors use 'Samarium cobalt' magnets. I don't understand much of this article. Please comment: http://en.wikipedia.org/wiki/Neodymium_magnet Comparison of physical properties of sintered neodymium and Sm-Co magnets[3]
  7. S

    SoCal Motored Bike Race Grange Trac Oct 22

    E-bikers from all the SouthWest and those with the gumption to travel even further can make plans for Oct22. The motored bike race takes place in 3400' desert 'tween Barstow and Victorville. The Grange track is full of sweepers 'an hairpins with a honking long straight plus earstwhile rise...
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    Weird, not so uncommon source of flats, SunRingle

    Several days before the Willow Springs race found my rear tire flat. Installed a spare WalMart tube. Next morning, another rear flat, checked around for the usual causes, but found none. Assumed the thin WalMart tubes were at fault, bought some slightly thicker Target Dept Store tubes. Ran...
  9. S

    Hollow RC Motor Shaft; extra Astro cooling thoughts

    Do motor shafts have to be steel? All the motors I've seen have steel shafts. I got Astro 3210 & 3220 in mind, but this could apply to others also. Problem I'm seeing with cooling my 3210 is that heat transfer from inside the motor, to the outside is slow. Even if I get a heat sink to...
  10. S

    Schwinn/32 10 Build Conclusions

    I. Frame and Motor/Drive unit 1st, my goal, Keep it a proficient peddler that safely uses bicycle components, yet fast enough to have fun! Safe means the power/speed doesn't stress the bicycle brakes, forks, wheels, ect. .to near 'failure' Fast IMO means getting to run in the final :D An...
  11. S

    What does Astro Motors PDF Data indicate?

    I'm edgin' closer to an RC bike build with an Astro 3210. Studying AstroFlights' Data raises more questions than it provides answers. Now I possess an average "Joe's" working knowledge of electricity, but the data makes me skeptical, verry skeptical :roll: For now I'm going to try to post...
  12. S

    Castle HV60 or 160 for Astro3210 ??

    Several issues discussed with RC Astro 3210s; 1) Y-pedal found his HV160 controller ran hot at cruise and had to open the throttle wide open or close to wide open to keep the heat down, 2) Belt slippage, system flexing, and torque shock are expressed concerns, 3) and from MWKeefer: [*At 44.4...
  13. S

    Local e-bike racetracks

    Looks like e-bike racing is ready to be born. LiveForPhysics has a place up in Washington Statehttp://endless-sphere.com/forums/viewtopic.php?f=3&t=19042, Dogman braved an e-appearance at Spooky Tooth (Tucson)http://endless-sphere.com/forums/viewtopic.php?f=3&t=17801 earlier this year. Struck...
  14. S

    BaFang vs Cute 128 motors

    Just cracked open my little Cute 128 motor. The motor size seems to be idenical to BaFang yet the casing diameter on the Cute is 8mm greater and the width about 8mm wider. Wonder how much this'll help cooling? The gears surprisingly are helica? cut and are noticeably larger on the Cute...
  15. S

    Cracking open a BaFang8Fun ? How?

    I need to get a metal gear into my little BaFang. I'm running 48V and am nervous that the nylong plastic gears could go soon (1,000 miles now). There's no seam in the cover opposite the power wire/cassette gears. Underneath the gears, the cover has a seam, and three 3/8" dimple holes. The...
  16. S

    Shenzen, Baby BaFang & Big BaFang BPM review

    Lots of curiosity as to BPM out there, read on! 1st, little BaFang. My bike is a dept. store Schwinn ladies Mtn bike bought orginally to get my wife interested yet evolved into my main transportation; e-bike weight 61lbs. I'm a thick legged 185lbs, have owned/ridden 4 e-bikes over the last...
  17. S

    Speedodometer validity

    Until now, I referred to Sheldon's Gear Calculator site and relied on my semi-reliable 80rpm cadence to estimate speeds. On 1 occassion my wife drove beside me on a 2.5 mile 800' descent. Sitting up and C-lyte drag kept speed to around 30mph. Thought my cruise was 20mph. With my new Bafang...
  18. S

    New Bafang, Shenzen needs life

    Really hope you can help me, e-bike is my transportation. Killed my trusty old C-lyte (crashed) :cry: But a chance to get out the new Bafang, lace 'er up (can you see the spoke pattern) and wire in the Shenzen Sucteam. Many wiring permutations later, dead, nada, no motion, ect. ...
  19. S

    The cursed Anderson connector thread

    Read where someone got really frustrated with Anderson connectors. I thought, now I've been there, but all in all, they're pretty good. I unplug my motor rather than use a battery key, probably plugged and unpluged the A connectors 1,000+ times. It's the installation that gets me. My 1st...
  20. S

    new/used battery compatability?

    I've enjoyed my 48V e-bikes. They provide modest hill climbing torque, allow me to pedal assist a bit, and run as far as needed at 20mph. Love to cruise 20 as a decent crash years ago taught me that old bodies don't heal well, sometimes not at all. Yet out in AL, where I spend summers...
  21. S

    received Ping bat today!

    Bakersfield, California, Zip 93308, mail route #806 May 13, 2009 In 2007, U.S. Postal Service was as anyone would expect it. One time, my church offering check got mixed in with the monthly bills and it was delivered to my church a few days later without a postage stamp! Then during the...
  22. S

    Will this controller handle 48V?

    I need more torque and hope to buy a 48V Ping an' just plug it in and ride. Yet I've lost info on my controller, the sticker fell off and it's just a little black box, not much bigger than a pack of cigarettes. I know it's rated 35 amp for a brushed motor only. No problems presently running...
  23. S

    Lithium Battery Article

    http://www.nature.com/news/2009/090311/full/news.2009.156.html
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