I'm new to this concept, mind helping me out? :)

GoldenMotor.com

lavie2k9

New Member
Sep 28, 2009
2
0
0
Dallas, TX
Here's my scenario:

I have an old Briggs & Stratton horizontal shaft motor that I got off of my old go-kart that got wrecked. It has 5 horsepower printed on the side of it and it has a centrifugal clutch with a gear attached to it. I am not sure how many spokes are on it because I'm not at home right now.

How does this motor compare to those others that are popular?
60/80cc Chinese motors, Whizzers, etc.

Could I just weld a mount into the bike and mount it under my thighs like a regular motorcycle and run the chain and be done with it?

I want to keep the rear gear casette. Is that a bad idea?
I don't know if that motor will rip it apart...
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,837
252
63
up north now
Welcome to the forum.....what you want to do can and has been done, but that's a lot of hp for a bike frame.

Check out our DIY forum for a lot of tips!
 

dmar836

New Member
Jun 23, 2009
166
3
0
KC
The rear wheel could be a dangerous weak point IMO. Under no circumstance(well, maybe at gunpoint) would I mount such a high torque motor to a bicycle with a spoke mounted rear sprocket. Figure a better hub mounted version and it's doable. Very wide, but doable.
I used a Worksman drum rear and spun the threads off the hub with the steel freewheel in less than 2 miles of testing.
Dave
KC