new bike

I have a 60cc/80cc two stroke engine with a Newley replaces spark plug and a high performance carburetor, bike only starts if fuel is added manually into the piston, only runs for 20 seconds, and when bike tries to run normally makes the sound that it’s attempting to run. When fuel is added...

Hi all! I was a little overwhelmed trying to find a answer for a good starter motor so I decided to start my journey here. I have a 29" Mongoose Banish Mountain Bike I would like to use in my first build (A lot on ebay if you need to see it or check link below). This is a 21 Speed with...

This is my second build, and it came pretty soon since my last bike got stolen(my folly for thinking a cable bike lock was a good idea :( ). Mistakes I made on my last build weren't made on this one, and I really think this bike is waaaaayyyyy nicer than my last one, although I wish I still...

Just got my 80cc engine mounted to my Hardrock Specialized Trail-bike! It was a bit challenging to put together, but it's all worth it. I did mess up on cutting the chain, so I had to order a new one, but thankfully my neighbor had a proper chain cutting tool that he uses for his Kawasaki...

I'm new to building motorized bicycles in general and I gained a lot of knowledge through the forums but also have some questions of my own. I am looking at building my own bike, after not being able to find a schwinn occ stingray like I wanted to locally. I would like to build a frame...