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  1. Ebikebert

    https://fattirebikeparts.com/ (What is your opinion)

    Hey ES. I want your input on what you guys think about this website. I was wondering if anyone had any personal experience with the site perhaps purchasing something from them. If not I would still like your opinion of what you think of the site on a whole. Thank you guys for your continued...
  2. Ebikebert

    18 fet lyen controller regen issues SOLVED!!

    I was finally able to use this controller for the first time this morning. It was fantastic! Incredible power (The front tire was rarely on the ground). However, I noticed when I needed to slow down the regenerative braking was not working. I have checked and did a continuity test on the GND and...
  3. Ebikebert

    ebike overall help!!!

    hello guys I am at the point of giving up!! I have a big problem! My bikes specs are as follows modified 1000W yescomusa motor, 9 fet 40A lyen controller, 20s 4p Samsung 25R battery pack. With this setup I figured i would hit 40 mph without any problem for sure. Well i was wrong. My problems...
  4. Ebikebert

    Trusted and Reliable companies list for batteries

    Hey guys I am hoping we can eventually put this in endless wiki or something but i wanted to start a reliable and trusted companies list to purchase batteries from. I hope this can take out some of the hair pulling stress one can encounter while trying to find a reliable source for your new...
  5. Ebikebert

    controller help PLEASE!

    hey guys today is a sad day for me. I started today riding my e-bike for the first time after many hard working months. It was fun while it lasted but i knew there was something wrong with my setup. Here is my setup list. I have a 1000W yescomusa motor running with a 9 fet 72v lyen controller...
  6. Ebikebert

    Floridian E-bikers/EV lovers meet and greet

    HI E-S, I have been on endless-sphere for a while and have seen and even pm'd many of you who live close and I would like to get a decent group from Florida together. I need your assistance to help in planning perhaps a date where many of E-S forum members from florida can meet up and have a...
  7. Ebikebert

    Samsung 25R/LG 18650HE2/ Sony VTC5 high power 18650 battery

    These are new cells for high power applications that have both more capacity and more punch. I have attached some data sheets showing some results for these cells from the manufacturers. Both of these cells have a max continuous discharge of 20A and a max pulse of 35A while still having 2500mah...
  8. Ebikebert

    Charging options for 24s lifepo4 battery

    I just recently bought 8 of these lifepo4 batteries from hobbyking- http://hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=23684 I thought these batteries were an incredible value for their price. I bought a switching power supply the same as this one for charging my batteries. I...
  9. Ebikebert

    single speed freewheel on yescomusa motor?

    Hey E-S, I need to know if this single speed freewheel will fit the threads on a yescomusa motor http://www.ebay.com/itm/New-Dicta-BMX-Freestyle-Bicycle-Bike-Freewheel-1-8-14T-Chrome-Plated-/370908492465?pt=US_Cassettes_Freewheels_Cogs&hash=item565bde72b1 Thanks for your help!
  10. Ebikebert

    Noobish cycle analyst question

    Hello, endless-sphere enthusiasts I have a question regarding the cycle analyst. My question is how do you set it up where when you are charging your battery it will display in negative amp hours and watt hours to monitor your pack while charging. On the link below you can see doctorbass doing...
  11. Ebikebert

    Dc to Dc converter troubles

    I am going to ask a question for your thread found here about DBs perfect battery equalizer http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=28285&hilit=makita+building&start=50 I have had some difficulty with a dc-dc converter trying to do the same. I just recently purchased a...
  12. Ebikebert

    hall wire connector options

    Hey guys or gals if there are any, i was just wondering if you have used any other connectors for hall wires other than those cheap bulky Chinese connectors. I also wanted to know how many amps go through the hall wires. I was thinking of using a cat-5 connector like this...
  13. Ebikebert

    finding the right hall sensor for a hall magnet switch

    Hi everyone i am trying to make a magnet and hall switch to put on my brake lever. My problem is i cant find the right type of hall sensor that gives me the specific magnetic force taken to activate the hall switch. If you guys can lead me in the right direction with a link to a website where...
  14. Ebikebert

    e-bike hydrolic brake

    hello everyone im having some trouble finding some nice hydro brakes for my e- bike. i was thinking of these http://www.jensonusa.com/Magura-MT-2-Disc-Brake do you think one in the front only with a 203 mm rotor would work for a 72v setup with regen weighing in at just under 200 lbs with me...
  15. Ebikebert

    upgrading phase wires and hall wires

    if you upgrade phase wires do you have to also upgrade hall wires? i also want to install a temp Gauge and i have five hall wires coming out of my motor is it true that i can use two of these wires to install a temp gauge. my motor is a yescomusa 1000 watt hub do you think i can push this motor...
  16. Ebikebert

    Who is the youngest e-bike builder?

    who do you guys think is the youngest e-bike builder here i don't know any guys my age doing this. i am 16 yrs old and finished my e-bike build a few months back. I started the build when i was fifteen and i then went onto building my own battery pack from 18650 cells from overstock laptop...
  17. Ebikebert

    hobby king lipos

    i am making this thread because i want to go for 20s and i was wondering which hobby king lipos would give me the most cycles of life for around 350 dollars with 10 ah of battery life. Do the turnigy nano tech batteries have a longer life than the regular 20c turnigy lipos. Also do certain...
  18. Ebikebert

    free wheel not spinning on yescomusa motor

    as the title states my yescomusa 1000w hub motors freewheel is not spinning and seems like the back of the free wheel is rubbing on the body casing of the hub motor preventing it to spin freely and disables me to put a chain on my ebike. If i were to put the chain on my bike the pedals would hit...
  19. Ebikebert

    20 inch wheel vs 26 inch wheel

    I just wanted to know what the pros and cons were to these different rim sizes. I noticed a lot of the higher powered bikes had 20 inch rims for performance. But I don't know what they mean by performance. Acceleration?speed?
  20. Ebikebert

    how to ship a hub motor help

    This might be a strange subject however I am selling my hub motor on eBay but I need a good way to ship it. I don't have the box it came in anymore and I need an alternative way to ship this hub motor it is a 26 inch wheel with 150 mm drop outs thanks in advance. :D
  21. Ebikebert

    BB Direct drive motor vs. hub style motors

    i really want to know the pros and cons of motors such as the gng direct drive motor or cyclone and the hub style brushless motors such as the macs,ninecontinents,crystalytes ect. i would like to know which setup is more efficient when it comes to wh/m. I would also like to know which one could...
  22. Ebikebert

    hub motor is not fitting in my frame!

    hey guys i need some suggestions from you on what is the best way to mount my hub motor onto my bike. i bought an aeotoma rear hub motor about a month ago and it has a width of 150mm. and when i try to put it on my bike the freewheel hits the dropout not letting it go in. i need some suggestions...
  23. Ebikebert

    Turnigy lipos vs a123 lifepo4 batteries

    I really need to know some of the advantages and disadvantages to these to different lithium types such as cycles of life discharge rate and overall overview of these two battery types. :D Thankyou guys in advance (moderator edit: merged your duplicate posts into a single thread. Please do...
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