Off Road Bike Builds

I see a lot of sweet cruisers around the forum and I figured it would be cool if we had a thread for bikes with some heightened off road capability (If anyone besides me has built one). I love riding on canal roads and in the desert with my bike and wanted to see what some of you guys have built.

I'll start with mine,

My friend and I built this one, it's a 1984 Schwinn Impact (chromoly steel frame) which was a mountain bike back in the day. This was back when Schwinn had just stopped making bikes in the US. Anyways, I installed a 50cc I bought off amazon that with regular maintenance, has served me well so far. Since then, I have installed some modifications to make it better suited for trail riding, including a kind of expansion chamber, 50 tooth rear sprocket, CNS Carburetor, headlight, and then a fork swap. The fork is actually pretty sick, the original bike came with a rigid chromoly steel fork and I figured that if I wanted to go off road I'd better get some suspension. I wanted it to be period appropriate, so I bought a 1994 Rock Shox Mag 21. With 46mm of travel (and I think mine might have the Long Travel conversion so 63mm?) it was a top of the line air sprung fork back in the 90s. I had to the cut the head tub on the frame a little but other than that the fork fit perfectly and in my option it looks insane, especially with the knobby tires and the mud fender.
All in all, its a pretty sweet little trail bike and it rips off road (as long as there isn't any hills haha).

Here are photos...

IMG_7442.jpg

IMG_7444.jpg
IMG_7449.jpg
IMG_7441.jpg
 
Hey I appreciate the apology man, I understand that my comment on the other thread insulted you so I would like to apologize for that.

I think you should take a closer look at my motor it's not as cheap as it appears to be. I have some images of the top end taken apart on this thread I started on my project: The Ongoing Search for Maximum Power... except its a 48cc.

I appreciate your advice and I will definitely contact you if I have any questions.
I'm an absolute mouth breather l lol they're totally dissimilar. Same at glance but mine has closed transfers! Here a pic of the afte the aftermath (post final beating) note the slope of transfer toward exhaust. Also not the domed chamber and flat piston. By al accounts my motor didn't stand a chance lol
 

Attachments

  • 20241107_185606.jpg
    20241107_185606.jpg
    48.1 KB · Views: 7
  • 20241107_185343.jpg
    20241107_185343.jpg
    56.2 KB · Views: 7
When I first motorized the LandRider, many told me it was impossible to do and would never work; I rode the bike for 10 years.

Very impressive! I'm currently working on a seat tube mounted 2speed! So I can have an overdrive lol my bike already has crazy acceleration with a 32t and I can cruise it at 40mph all day with traffic but I'd like alittle drop in rpms for my over 60mph pulls so I don't send another avenger to a 12k rpm grave lol.
 
They don't need you to send them...They do it all by themselves with no provocation whatsoever...lol...lol.
I swear I wouldn't be so hell bent on making one of these go if you weren't a top tier heckler lol it's most of my motivation. Otherwise I would have e probably just come to my sense after engine 2: cylinder 3 but here we are. Sude note it's legitimately shocking how many people recommend this and call it "reliable" upon a brief Google search. Maybe that's true if your criteria is low rpms,very occasional use and a total lack of standards lol.
 
a top tier heckler
I aim to please...lol.

Maybe that's true if your criteria is low rpms,very occasional use and a total lack of standards lol.
Now I understand your lack of standards...lol...Your listening to the Google search's artificial intelligence, (Or lack thereof...lol.), ...lol...Just another reason to hate AI I guess...lol.
 
I'm an absolute mouth breather l lol they're totally dissimilar. Same at glance but mine has closed transfers! Here a pic of the afte the aftermath (post final beating) note the slope of transfer toward exhaust. Also not the domed chamber and flat piston. By al accounts my motor didn't stand a chance lol
Haha all good dude, yeah that little 48's not looking too good, the ports looked like they where chiseled using a pencil and a rock. I believe that mine is modeled after the top end of a Yamaha PW 50. piston dimensions are the same as well as squish gap and dimensions of the chamber.
 
Back
Top