1. Testname111

    ATHENA 69.8 CC bicycle frankin-bike :)

    I made this after finding out the kit big bore still had a 40mm piston stock China girl size Check it out, my new Athena minarellie clone with carbon reed I plan on making a copper exhaust, 47.6mm piston true big bore should I braise or hose clamp all my coper joints...
  2. S

    Needing a hub mounted sprocket for .8" to 1"

    Okay. So I've tried searching a bunch on many forums and sites and k I can't seem to find anything that will fit my Raleigh USA Heat. The rear hub is little less than an inch and most hub mounted sprockets from anywhere only seem to goto and inch or more. Curious if anyone knows of one I can get...
  3. TheNecromancer13

    79cc Predator Bike Instructable

    I have put together an instructable on how I build my motorized bicycles, tell me what you think:
  4. miked826

    WWll Electric or Gas bike (rolling frame)

    Custom bike made with .065" DOM carbon steel tubing. Bike has working turn signals, brake lights and high low beam headlight. Bike has never been tested other than as a pedal bicycle AND IS SOLD AS EXPERIMENTAL. This bike has motorcycle tires and rims. Batteries go in ammo cans in the rear. $399...
  5. TheNecromancer13

    58V electric chainsaw to power bike?

    So I'm thinking of making a bike with this electric chainsaw as the power source: It would require very little modification, as it already has a variable speed throttle, a clutch, and the...
  6. W

    Huffy Cranbrook Project

    I just built my first motorized bicycle, so i thought i would join this forum. I bought a Huffy Cranbrook on sale for $88.00 at walmart and bought a 80cc (66cc) Bicycle engine kit off of ebay for $145.00 with free shipping. I got my kit in the mail friday and had it all put together in a few...
  7. M

    motorized bicycles in Europe?

    I was looking for a frame with an integrated gas tank and a combustion chamber but I cant seem to find any stores in Europe.I thought of buying the frame from King's motor bikes but I dont really know how things go for duties and customs.Does anyone know any stores from Europe or anything about...
  8. F

    Help with finding some 24" wheels please

    I'm building my first motor bicycle sort of retro classic style.Im using a phantom (felt style) tank frame with Monark 2 springer forks ,aged brooks springer saddle etc. But I am having trouble finding the wheels I'm after . I kinda fancy some 24" 5.0mm wide rims pref black or gold as I wanted...
  9. R

    4 stroke bicycle projects

    hi friends my projects as I did in the picture what do you think you engine= fully automatic 4stroke 100cc atv engine chasiss=bicycle gear=14t-44t type= off road Waiting for your thoughts photoshop projects translate= google translate dnut
  10. A

    best beach cruiser to use?

    I have the engine kit picked out but I need to know what brand of beach cruiser works the best. schwinn? huffy? What works the best?? If there is a mountain bike that works too let me know! having shocks would be nice given what and where I'll be riding. all input is welcome! thanks!! dnut
  11. G

    Reasons for riding Motorized Bicycle

    I was wondering what are everyone's reasons for riding a motorized bicycle to a destination over biking. my reasons are: Time(i can get there faster) Sweat(i can get there dryer) I'd like to find other ideas from everyone else. so.... Why?
  12. M

    pull starter

    How does a pull starter work? What happens once it turns on the engine?usflg
  13. miked826

    Noob attempts a Felt MP build: Have mercy on me.

    Agonizing between a jackshaft setup or a separate rear sprocket, I pretty much cornered myself into a jackshaft setup by installing the rear 203mm hydraulic disc. There is just no more clearance in the back even with a top hat adapter. I tried to cram a 11 HP hopped up GX200 racing clone in but...
  14. H

    From the middle of nowhere

    Okay, maybe not in the middle of nowhere, But it feels like it! Live in the Puget sound, right on a small island called Vashon. Anyways, I'm 15, and got my project last Christmas. Yes, this is not my first post, as my first one was ranting about BoyGoFast. I had a very bad week a while ago...
  15. B

    Amphibious bicycle

    This bicycle is at least motorized on the water with a DIY inboard motor.The aim of this project is to create an amphibious bicycle from stuff you can find at your local hardware store. I use common tools, so no welding or big machinery. Another goal is that everyone can use his or her own...
  16. S

    Types of electric bicycles

    I have only seen two, what kind of it?.cs.
  17. N

    NY laws on motorize bikes?

    Hi everyone, I would like to buy a engine online for my mountain bike but Im not sure if I need to get a license or registration. the engine i wanna get is prob 40 - 50 cc, (I have read that anything under 49cc you don't need anything, Is that true? I really dont want to do any legal papers...
  18. T

    Bicycle Security! Ideas, options, thoughts...

    I think this topic deserves its own main forum category, but since it doesnt I decided to start a thread here, safety is the next closest thing I suppose. So lets start a nice lil giant database of security systems. All ideas whether tried, tested, experimental or even just ideas are welcome. I...
  19. M

    The GT2 in-tank bike - Anyone want one?

    I have one I decided not to assemble. Anyone interested in taking off my hands?
  20. DuctTapedGoat

    Cool Vintage Bikes I took a trip to Caldwell (next town over) and they had some very cool old bikes, a few schwinns - a couple of them trikes, a peugeot 26", and a robin hood. I took a couple pics of the...