MikeJ
Member
I am looking for advice before I start a project. I have a running 2-cycle bike, and it runs well. Now I want to start Project #2. I would like to place a 50cc 4-cycle engine behind the seat post but in front of the back wheel. This would mean pushing the back wheel backward by 12 - 14 inches or so.
I have seen photos of a green elongated motorized frame covered with cross-country camping gear. I did not get the name of the owner. So it has been done. I noted he kept the triangle geometry behind the seat post, no doubt for rigidity and strength.
Setting modification expenses aside, are there other technical considerations to be considered? The project bike is 4130 chromoly steel, so additional frame members will be the same alloy. I will get a professional welder to weld it up.
I'd like to hear comments from bike builders what to watch out for, and what have you.
MikeJ
I have seen photos of a green elongated motorized frame covered with cross-country camping gear. I did not get the name of the owner. So it has been done. I noted he kept the triangle geometry behind the seat post, no doubt for rigidity and strength.
Setting modification expenses aside, are there other technical considerations to be considered? The project bike is 4130 chromoly steel, so additional frame members will be the same alloy. I will get a professional welder to weld it up.
I'd like to hear comments from bike builders what to watch out for, and what have you.
MikeJ