my 700c single speed 2 stroke 80cc

Discussion in 'Motorized Bicycle Welding, Fabrication and Paintin' started by Izzy, Jan 6, 2009.

  1. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    as you can see this is my first build ever. im still dealing with the break in period, but its fast. i wanted to make it simple light and fast. i also used a flip flop hub and attached the 40 tooth sprocket to the hub in order to relieve some stress from the spokes i then fastened the rest the normal way just for redundancy. a double pull brake lever to actuate bothe brakes and a brake lever for the clutch i have a new clutch that my brother got me for christmas its a cnced clutch. it will go on as soon as i get a nice locking brake lever.
     

    Attached Files:

  2. Dan

    Dan Staff
    Staff Member

    Joined:
    May 25, 2008
    Messages:
    12,495
    Likes Received:
    50
    Lookin' good Izzy
     
  3. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    why thank you good sir i pride myself in my work.
     
  4. seca40

    seca40 New Member

    Joined:
    Nov 15, 2008
    Messages:
    131
    Likes Received:
    0
    Boy I'll bet that thing rips with those skinny tires..wee. It makes me want to build one. I do have another kit coming. Hmmm.
     
  5. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    souds great if you do fine a fixed gear flip flop wheel run the pedal drive treain to a freewheel and tack weld the gear to the fixed gear cog and fasten it onto the hub. i can do a writeup on the process and flip flop wheels have become very inexpensive.
     
  6. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    oh yeah its awesomely fast.
     
  7. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    ive also thought about machining a wheel that would allow me to mount the 40 tooth cog to a disc brake mount.
     
  8. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    its still a work in progress im going to make some covers for the middle section of the frame to protect the lines and wires.
     
  9. mechanickid

    mechanickid New Member

    Joined:
    Aug 7, 2008
    Messages:
    419
    Likes Received:
    0
    who did u buy it from?
     
  10. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    alright this project was fun and i would be happy to make a write up, i will most likely be building another one soon.
     
  11. Dan

    Dan Staff
    Staff Member

    Joined:
    May 25, 2008
    Messages:
    12,495
    Likes Received:
    50
    Disc brake/drive sprocket is a really cool thought! Would it be stout enough?
     
  12. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    it would work people do it to make mountain bike fixed geared bikes downhill mountain biking hubs are very strong. im trying to eliminate spoke breaking and increase the life span on wheels
     
  13. brisbane_boy

    brisbane_boy New Member

    Joined:
    Oct 26, 2008
    Messages:
    216
    Likes Received:
    0
    i like it man, i had 1 of this 700c bike b4 i sold it. i regret the sell now but oh well.
    Can u get those wheel with disc brakes but? i know they dont use disc brakes on racing bike because they are to heavy??
    It looks good but man. can u take some close ups of the bak wheel so we can see how u hav mounted the sprocket on the wheel?
     
  14. Saddletramp1200

    Saddletramp1200 Custom MB Buiilder

    Joined:
    May 7, 2008
    Messages:
    1,420
    Likes Received:
    0
    Fast is GOOD :) Me like. Good job Issyscratg
     
  15. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    the disc brake wheel would be a custom wheel that i would build. i build my own wheels im a bicycle mechanic by trade and i teach youth and adult classes. aside from that i come from a long line of engineers. so combining my knowledge i figured out the game pretty quickly. im probably going to build a disc brak hub onto a 700c rim next and build a multi- speed road bike with a motor assist. im going to try and get something like a schwinn letour or any of the schwinns produced by panasonic in the eighties. the motor kits seem to be very easily mounted to an 80's road frame. skinny steel tubes for the win. though the bike i built here is actually one of the first aluminum frames ever produced. its an 80's miyata and it was a great frame, light and strong. also when considering the weight of the disc brake hub, eh its a motorized bike i dont need to shave grams like some racer, the motor will still propel me very quickly im a small guy im 5'8'' and 130 pounds.
     
  16. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    anyways ill try and get some pics up tomorrow. so you can see the mounting of the sprocket.
     
  17. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    alright well im replying to a post about park bike stands and all i have to say is any park stand is a good bicycle stand and i wouldt see the need to take any wheel off.
     
  18. NEAT TIMES

    NEAT TIMES New Member

    Joined:
    May 28, 2008
    Messages:
    1,964
    Likes Received:
    0
    Thanks Izzy. Ron
     
  19. Izzy

    Izzy New Member

    Joined:
    Dec 23, 2008
    Messages:
    22
    Likes Received:
    0
    ok so im still blind from the welding but i just have to show my newest home made saddle. It's built entirely out of recycled goods :). also a closeup of flip flop hub mounting. I just noticed you can see my cats little fat butt in the first picture.
     

    Attached Files:

    #19 Izzy, Jan 11, 2009
    Last edited: Jan 11, 2009
  20. trackfodder

    trackfodder Member

    Joined:
    Sep 8, 2008
    Messages:
    347
    Likes Received:
    2
    With 700 cc you should be able to top 100 mph. Better get better brakes.
     

Share This Page