A tire is a device covering the circumference of a wheel. It is an essential part of most ground vehicles and is used to dampen the oscillations caused by irregularities in the road surface, to protect the wheel from wear and tear, as well as to provide a high-friction bond between the vehicle and the ground to improve acceleration and handling.
Moped tires are manufactured from synthetic rubber.
The sizing of moped tires can be confusing. For example, a 20" tire actually measures 16".
Moped tires are most often sized at either 17" or 16". Motobecane, Peugeot, Sachs, Puch, Kreidler and other mopeds typically came stock with 17" wheels / tires, whereas Italian mopeds such as Minarelli and Vespa, as well as Tomos mopeds typically came with 16" wheels / tires. Japanese mopeds such as the Honda Express NC50 or the Suzuki FA50 were equipped with 14" tires.
There are several tire varieties to choose from when replacing your stock tires. Michelin makes two popular 17" tires, the Michelin Gazelle, which has great tread but is notorious for being hard to install, and the Michelin VM100 2.5×17,” an inexpensive and high-traction tire. Another very popular 17" tire is the Sava MC11, which is much smoother than the Gazelle and works great on pavement, but does not have good traction on less uniform riding surfaces. This tire is much easier to install, but tends to pop more frequently than the Gazelle. Michelin and Sava both make other moped tires as well.
Note that it is possible to get thicker (or thinner) tires than what is currently on your moped. Thicker tires tend to provide better traction and better handling around turns, but they also add more weight to your moped. The most common width of stock tires is 2.25", and people who build racing bikes often replace their tires with a 2.50" or 2.75" width. The maximum width your bike can handle will depend on the width of your swingarm, or in some cases, the front fender. (The front fender can usually be removed to accommodate a wider tire).
Changing a Tire
See Tire Change
Tire Supplier Links
Several of the moped parts suppliers linked on the Shop links page also carry moped tires.