![New tires have a smooth, slippery surface that must first be roughened by moderate use.](/content/dam/conti-tires-cms/continental/b2c/tire-knowledge/buying-tires/Continental__Images__Product-Action__003-Sport-Touring__ContiRoadAttack-4__Conti-7098.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
There are two different types of Continental Motorcycle and Scooter Tires available: Tube-Type Tires and Tubeless-Tires.
These tires are designed to be mounted on tubeless rims (see rim description below) and have a corresponding TL marking in the description of the tire size (e.g. 120/70 ZR 17 M/C 58W TL).
Continental Tubeless-Tires can be mounted on tubeless rims without inner tubes but also on tube-type rims, if mounted with inner tubes of the correct size.
TT tires are designed to be mounted on tube-type rims only (see rim description below) and have a corresponding TT marking in the description of the tire size (e.g. 90/90-21 M/C 54S TT).
Tube-Type Tires from Continental have to be mounted on tube-type rims with inner tubes of the correct size but are not allowed to be mounted on tubeless rims, neither with tubes nor without tubes.
Tubeless rim
Tube-type rim