Answer
Dec 10, 2025 - 10:10 AM
The speed will depend on what engine kit you will use on this bike. The Zeda 80 engine kit can go about 40-45 mph after break in. The phantom 85 engine kit can get up to speeds of about 50-55 mph. Here is a link to our 2 stroke engine kits we offer that can mount to the screaming demon bicycle 2-Stroke Engine Kits | Bicycle-Engines.com
