Motorized Bicycle Engine Kit Forum  


Go Back   Motorized Bicycle Engine Kit Forum > Motorized Bicycle > Motorized Bicycle General Discussion

Motorized Bicycle General Discussion All topics regarding bicycles with engines.

Thread Tools Display Modes
Old 07-11-2010, 02:11 PM
MasterMaker MasterMaker is offline
Motorized Bicycle Newbie
Join Date: Jul 2010
Location: Norway
Posts: 1
Default A strange question!

Well, maybe not that strange but...... a problem none the less.

I want to build myself a motor bike, preferably 4-stroke and I was wondering exactly how much omph I would have to use as far as the engine is concerned to propel my rather dense carcass at reasonable speed and also be capable of carrying my 330 pound(weightlifter)frame up-hill.

While I do not have any experience with engines I do have quite a bit of experience with machine-tools and I have an forever growing shop so I can make custom...pretty much anything.

Since I don't really think I will find much in the forums about riders with my kind of tonnage I am posting this.

Any ideas on what it will take in the line of power for a trail bike which is what I want to build?

Last edited by MasterMaker; 07-11-2010 at 02:15 PM.
Reply With Quote
Old 07-11-2010, 10:17 PM
Dan's Avatar
Dan Dan is offline
Join Date: May 2008
Location: Moosylvania
Posts: 11,850
Default Re: A strange question!

Howdy MM, welcome. There are a lot of large riders here who can better advise you. But it is pretty amazing what any of the 4 smoker kits can do. Also check out the DIY section. Lots of really cool builds.
worst apocalypse ever
Reply With Quote
Old 07-11-2010, 11:02 PM
scotto-'s Avatar
scotto- scotto- is offline
Custom 4-Stroke Bike Builder
Join Date: Jun 2010
Location: Ridin' inSane Diego, CA.
Posts: 6,506
Thumbs up Re: A strange question!

Welcome MasterMaker...enjoy the ride! I'm no expert on physics and moving mass, but I think a 4-stroke of 50-100cc ought to do just fine. You're already one step ahead with a machine shop at your disposal, sounds like you'll be going places (on a motorized bike at that). I'm sure someone of larger stature and expirience with mab's will chime in...cheers!

EZ Motorbike Dealer - San Diego, CA.
Nothing is out of my realm,
if it doesn't fit, make it fit! Beer is the answer....what was the question?
A sense of humor costs nothing, why don't people use them more often?
"You can't buy have to earn it"
Reply With Quote
Old 07-11-2010, 11:20 PM
KCvale KCvale is online now
Motorized Bicycle Elite Member
Join Date: Feb 2010
Location: Phoenix,AZ
Posts: 3,554
Default Re: A strange question!

For less than a straight 4-stroke you can build a 66cc 2-stroke with a jackshaft kit so you have gears.
A good 3-speed hub bike works dandy, but if you need more gears you can use a derailer bike too.

On a 3-speed 2nd is like a direct drive, 1st is granny gear and 3rd is overdrive.
Just search this forum for "Jackshaft" for more info.
I have a topic about mine here too.
KC's Krusiers Builds
Reply With Quote

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

All times are GMT -5. The time now is 11:16 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2016, vBulletin Solutions, Inc.