Made in the USA by the Motorcycle geniuses at Trail Tech, this is exactly what you need for your moped.
It is a Speedometer, a Temp gauge, and a Tachometer. Includes all the hardware you need to hook it up, and this is the best version of the Vapor for mopeds. It has the 14mm sparkplug connector. The size you need.
This is great for perfecting your tune as well. Temperature is a big factor in blowing up your bike. Make sure your heat is low enough when compared to your RPMs, also wow your friends with your Trailtech verified speed!