Motorized Bicycle Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle Engine Kit Forum > Bicycle Motor > DIY Home Built Motorized Bicycle (non kit)

DIY Home Built Motorized Bicycle (non kit) Post all about your home built rides here. Weedwacker motors, lawn mower engines ect. This area is for non kit builds

Reply
 
Thread Tools Display Modes
  #31  
Old 02-25-2017, 08:06 AM
cannonball2's Avatar
cannonball2 cannonball2 is offline
Motorized Bicycle Elite Member
 
Join Date: Oct 2010
Location: Colonial Coast USA.
Posts: 3,471
Default Re: Minimalist FD

Got and modified the BMX peg. If I still had my lathe I would have turned a bit off the nutted end. As it is its a perfect fit to the area of the tires contact. I trimmed off about 2.5 and retapped to 3/8 24. The is peg actually 1.32"

I havent ridden it out on the paved road but it worked fine on our sand/gravel island road. It is the max size for the 21cc. Have to help it to about 10mph then it begins to develop power and slowly accelerate. Will do much better on pavement.

So this is an easy cheap way to get a minimalist lightweight MB. Makes for a neat little bike you can throw in the car, ride bike trails(engine off or quickly removed) with almost no additional weight. I came in way below my 10lb limit. It requires minimal fabrication, less than an hour. Was thinking about a total bolt on/ together method, but that may very with the brand of trimmer.
The newer 26cc trimmers make good power and cost around $79. This method will work with any bike with the common non suspension fork. So if one has a bike laying around a motorized bicycle could be constructed for a $100 or so using a new trimmer. If you yard sale it 1/3 to 1/2 of that. Just don't use a trimmer with a bushing head, also it must be a curved shaft not a straight shaft trimmer.
Attached Images
File Type: jpg DSCF2067.JPG (352.8 KB, 14 views)

Last edited by cannonball2; 02-25-2017 at 08:09 AM.
Reply With Quote
  #32  
Old 02-25-2017, 09:20 AM
curtisfox curtisfox is offline
Motorized Bicycle Elite Member
 
Join Date: Dec 2008
Location: minesota
Posts: 3,754
Default Re: Minimalist FD

WAY KOOL! Maybe you should think about getting a small lathe, snoop on the Bay for used one. LOL...........Curt
Reply With Quote
  #33  
Old 02-25-2017, 10:09 AM
scratchbuilder's Avatar
scratchbuilder scratchbuilder is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2015
Location: ca.
Posts: 536
Default Re: Minimalist FD

That really a nice idea. Before I got the 'build bug', I rode a bike most everywhere for like 7 years. Now with no peddlin, for 2 years, if it wasn't for side jobs, I'D get no exercise!!!and its showing..lol like you say, peddle out, motor back.
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



All times are GMT -5. The time now is 05:59 AM.


Sponsors

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
MotorBicycling.com