Building a new E-cumbent

Discussion in 'Electric Bicycles' started by recumpence, Apr 20, 2008.

  1. recumpence

    recumpence Member


    I was recently introduced to this forum.

    I am in the middle of my first E-bike conversion. It is pretty unique.

    Here is a link

    Anyway, I have a long background in bicycles and radio control as well as machining. I decided to marry those 3 skills together on my very diffeernt project.

    I am glad to be here!


  2. Zev0

    Zev0 Member

    Welcome to MBc. There's lots of great information to be garnered here. And from the looks of it you have lots of info to share.

    Also could you please go to your UserCP and put in your location. Thanks
  3. :shock:

    That is the coolest thing ever.
    That gets a roadie nod.
    A roadie nod lol!

    Helicopter RC motor.
    Just brilliant.

    Please let us know how it all went on the road.
    I'll definitely be checking this thread out from time to time.
  4. Abeagle

    Abeagle Guest

    Welcome to MBc. :cool:
  5. graucho

    graucho Active Member

    Hi Welcome to MBc! Home of many answers, and awaiting your ideas.
    Sweet, sweet ride! Hang around here we can use you.

    General request to all new members.
    Please, before posting any questions, do a search. Then READ,READ,READ.
    There is a ton of information here. Many of your engine and performance issues in the Garage & Tech/Mech Help have already been covered. Here at MBc we are the home of nearly all MoteredBike questions. If you search and are unable to find your answer, don't hesitate to post your question. Were here for each other! Enjoy! :grin:}
    Here's a great post link to get you started.
  6. fredbert

    fredbert Guest

    Hi recumpence,

    I am blown away with your conversion it is fantastic. I have one of these would your setup do the same job, I mean replace the motor etc.

    Sorry I cannot get my head around using a little motor so I am just asking to get it straight in my head, please don't think I am being rude.

  7. recumpence

    recumpence Member

    Hey Guys!

    Thanks for the welcome. I was unsure about posting here because this seems to me mostly a gas conversion forum. But, hey, we all love custom bikes! :grin:

    Anyway, the motor I am using is small in size, but huge in performance. To be honest, it will probably be too much power for the rear spokes to cope with. The HP rating is roughly 6hp. But, the torque of this setup is far higher than the hp rating would suggest. I have seen a few others use RC motors with great success. But, I have never seen this much power being used.

    Anyway, I am not finished with it yet. I am working hard on it, though!

  8. recumpence

    recumpence Member

    Hey, I like your tag line. I couldn't agree more. it is good to see people posting their beliefs for all to see.

    Oh, I am in Illinois, near Chicago.

  9. Alaskavan

    Alaskavan Guest

    Welcome to MBc. I'll be watching your build with interest. Any guesstimate on the probable range per charge? If you're worried about the spokes on your wheel, check with the Wheelmaster. He laced my dual freewheel hub with 10g spokes. It works and looks great, though the beefy look of it might not fit your vision on this project.

    P.S. IMO the MotoredBike movement needs more inovative designs like yours. New frames, configurations and components.
    Last edited by a moderator: Apr 21, 2008
  10. BSA

    BSA Guest

    Welcome to the forum.

  11. recumpence

    recumpence Member

    I am guessing about 20 mile range at 20 to 25 mph without any pedalling.

    I may double my battery capacity to increse the range if I feel the need. But, for now, I will see if this suits my needs.

  12. fastboy9

    fastboy9 Member

    Wow, that really is an amazing build! that electric motor puts pretty much everybodies 2 stroke engine to shame! You are going to be a huge contribution to the motored bike movement!
    great to have you onboard!
  13. Torques

    Torques Guest

    Pure genius, thanks for the excellent writeup.
  14. quay1962

    quay1962 Guest

    yes welcome to MBc! that is one heck of bike you built...good luck on all your endeavors and happy motoring!
  15. hlombard

    hlombard New Member

    Wow ! Awesome.
  16. recumpence

    recumpence Member

    I will be back in the shop tomorrow (Wednesday) after work. I plan on making the chain guide/tensioner for the motor chain. The next thing is the pedal side chain management (ot 100% sure how to route it). After that, I am on to the electricals.

    I am getting close.

  17. fastboy9

    fastboy9 Member

    Brilliant! maybe when its all finished you would like to put it all into a thread in the electric bike section, more people need to know about this project! its fantastic, definetely would give the fastest petrol engines a run for there money.
  18. recumpence

    recumpence Member

    That would be fine with me.

    I can boil it down to the essence of the build and start a build thread in the e-bike section.

    Is it OK to post a link to the build there, or is that comsindered double posting?

  19. Alaskavan

    Alaskavan Guest

    Personally, I'll read it no matter where you post it. I am curious, you said you have to work on pedal side chain management. From the pictures, I couldn't see what the prob there is.
  20. fastboy9

    fastboy9 Member

    Yes, thats no problem! I can see you have put a **** of a lot of work into it, it just would be great to copy and paste some of that info you had written into MBc!