I bought a motorized bicycle for cheap, everything works fine, How is it that I was able to reach 62km/h with it in a straightway, the bike is stock except a spring tensioner which I installed on it. I have a speedo on the bike as well as my cellphone speedometer and both where roughly at the same speed. phone showed 60 and the speedo 62. It felt really fast an I only had a bicycle helmet then, now I’m using a motorcycle helmet…lol
Your speed was about 37-MPH...
Assuming that you have a 2-stroke engine?, that sounds about right for a stock engine kit.
Assuming that you have a 2-stroke engine?, that sounds about right for a stock engine kit.
37 is pretty reasonable for a good running 2 stroke. Depends on the gearing and how heavy you are.
Thanks guys….I weight quite a lot, like 180lbs. It’s a 80cc 2 stroke with stock 44t sprocket. What’s a good over all cruising speed? I don’t want the motor overheating. Also how often should I take a brake to let the motor cool down if I go on a longer ride?
I weigh over 200 lbs & I've never really had a problem with these engines over heating... As long as the bike is moving, there's air blowing across the engine to keep it cool.
It's it's also important to mix your gas & oil properly & don't jet the carb too lean... (I use 40:1 mix)
That’s what I use 40:1 and it seems to be running good, adjusted the carb step by step so I get no 4 stroking. Can I get your opinions, I’m planning on going trail / off-road biking and my plans are to use a 48t sprocket with an expansion chamber with muffler and a upgraded head for better cooling fins. I wanna build the bike so I don’t have to change sprockets for on or off road use. Do you guys think this would be a good setup?
