Bicycle Conversion Kits - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 03-18-2009, 10:24 AM   #1
Registered Member
 
Join Date: Mar 2009
Posts: 1,139
Country: United States
Bicycle Conversion Kits

Anybody know much about those kits that turn your bicycle into a moped? I saw the link in a gmail ad and followed it. I have no idea what the legalities here in VT would be, but figured I'd see if they were even a good idea to begin with. Thanks.
__________________

__________________


Main Entry: co de pen dence - see codependency
co de pen den cy
Pronunciation: \kō-di-ˈpen-dən(t)-sē\
Function: noun
Date: 1979

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another
GasSavers_maximilian is offline   Reply With Quote
Old 03-18-2009, 01:07 PM   #2
Registered Member
 
GasSavers_BEEF's Avatar
 
Join Date: Apr 2008
Posts: 1,831
somebody on here has done that and said there is a limit of the speed for it not to have to be registered.

25?...35?...45?... miles per hour.

I can't remember but I know that the guy that did it ended up having to register it because of the speed...wait, maybe it was the displacement.

man am I getting old. maybe he will see this and respond.
__________________

__________________
Be the change you wish to see in the world
--Mahatma Gandhi



GasSavers_BEEF is offline   Reply With Quote
Old 03-18-2009, 01:26 PM   #3
Registered Member
 
GasSavers_Erik's Avatar
 
Join Date: Nov 2006
Posts: 1,027
Country: United States
In many states a scooter/moped engine has to be less than 50cc or it has to be registered.
GasSavers_Erik is offline   Reply With Quote
Old 03-18-2009, 01:29 PM   #4
Registered Member
 
Join Date: Mar 2009
Posts: 1,139
Country: United States
The kit I was looking at is 50cc, but it exceeds the 2 hp limit in VT. Looks like the kit operates only at one gear ratio as well, which with our hills is a no go.
__________________


Main Entry: co de pen dence - see codependency
co de pen den cy
Pronunciation: \kō-di-ˈpen-dən(t)-sē\
Function: noun
Date: 1979

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another
GasSavers_maximilian is offline   Reply With Quote
Old 03-18-2009, 05:49 PM   #5
Registered Member
 
GasSavers_Erik's Avatar
 
Join Date: Nov 2006
Posts: 1,027
Country: United States
Hmm- I wonder how they enforce the 2hp limit? I have heard of police with portable scales to check gravel truck weights- but i have never heard of a portable dyno

Seriously- many small 2 cycle engines have the displacement listed on the side/cast into the cylinder but I have seldom seen the hp listed. Maybe a majic marker could make the hp label illegible
GasSavers_Erik is offline   Reply With Quote
Old 03-18-2009, 06:02 PM   #6
Registered Member
 
Join Date: Mar 2009
Posts: 1,139
Country: United States
I wrote the company to find out more details. hehe
__________________


Main Entry: co de pen dence - see codependency
co de pen den cy
Pronunciation: \kō-di-ˈpen-dən(t)-sē\
Function: noun
Date: 1979

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another
GasSavers_maximilian is offline   Reply With Quote
Old 03-19-2009, 10:00 AM   #7
Registered Member
 
Join Date: Jun 2008
Posts: 256
Country: United States
My Son built one. He got the "motor" off e-bay somewheres and it is one really small cylinder. It was a complete kit to motorize a bicycle and included a gas tank and kill switch. Just a clutch to "jump start" the little thing. It is very cheeply made but it worked. Kept breaking the part that goes on the bike sprocket (forget what he called it) and went through 3 mufflers. The bolts holding the bracket on and the bracket were real soft metal. He is doing a couple of changes to it. I think it is around 30cc or somewhere around there and it will do an easy 40mph or so. He rode it to work part of the summer last year when it wasn't being repaired. A gallon of gas lasted him a month. I rode it a couple of times and it is fun. He is currently building another carbon fiber frame for it and going to a couple of mods to it and try it again this year.

He had no trouble with the police or anything and it didn't need to be registered in NY due to the small motor size.
__________________
Dave
GasSavers_GasUser is offline   Reply With Quote
Old 03-19-2009, 10:06 AM   #8
Registered Member
 
Join Date: Mar 2009
Posts: 1,139
Country: United States
Quote:
Originally Posted by GasUser View Post
Kept breaking the part that goes on the bike sprocket (forget what he called it)
The overunning clutch? Part that lets you still pedal? I would think that'd see a lot of stress if made cheaply.

I assume it has just the one gear ratio? Big hills make that tough. I guess a go-kart variable v-belt transmission could be added.
__________________


Main Entry: co de pen dence - see codependency
co de pen den cy
Pronunciation: \kō-di-ˈpen-dən(t)-sē\
Function: noun
Date: 1979

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another
GasSavers_maximilian is offline   Reply With Quote
Old 03-19-2009, 12:24 PM   #9
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
When I was 12, my go-kart had a centrifugal clutch. More expensive models had torque converters. I suspect that a torque converter made for a small go-kart would suffice for the gearing issue on a motorized bicycle. Those may be difficult to find; I bet a torque converter (or maybe even a CVT) for a snowmobile would be easier to find/cheaper but might be too big/heavy/wrong ratios.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 03-19-2009, 01:09 PM   #10
Registered Member
 
Join Date: Jun 2008
Posts: 256
Country: United States
Quote:
Originally Posted by maximilian View Post
The overunning clutch? Part that lets you still pedal? I would think that'd see a lot of stress if made cheaply.

I assume it has just the one gear ratio? Big hills make that tough. I guess a go-kart variable v-belt transmission could be added.
It's a nylon/plastic looking round part......pardon my ignorance.

Yea, there is only one speed. No big hills on the route he was riding it so I don't know what it would do on a real hill. I would guess it would probably slow down to a crawl or something. On mild hills it slows down a bit unless you are running it at WAT.......it has an itty bitty carb but a lever where you can adjust the air flow to wide open........you can really get it going good on a straightaway.......haha

I was trying to figure the hp and I came up with around 5 with my fuzzy math so I really have no idea. The motor size was just rated at cc.......no hp mentioned.
__________________

__________________
Dave
GasSavers_GasUser is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
initial fill up knhobson Fuelly Web Support and Community News 5 02-02-2010 05:13 AM
EOC/P+G wins NASCAR LifeLock 400 ihatemybike General Fuel Topics 2 06-16-2008 08:12 AM
What oil to use? Project84 General Fuel Topics 11 05-08-2008 11:27 PM
Any left coast GSers want to display your FE modded wheels? MetroMPG General Discussion (Off-Topic) 0 04-12-2007 10:25 AM
Mitsu... tomauto Electric and Solar powered 0 10-10-2006 09:26 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.