@Kprzygoda Thanks for reaching out!
We touched base with one of our cycling experts, @REI-BryanV, who was also able to hit the sales floor and double check with this bike for the accuracy of the information. Here is the info you're looking for:
- The Cannondale Quick 2 comes with 32mm tires with no tread. If you just changed your tire to a tire with more substantial tread, such as the Vittoria Terreno Dry Tire (700c), that would give you a lot of benefit when riding on gravel or light dirt.
- 32mm is a solid tire for gravel. World Cup Cyclocross races happen on 32mm tires (this is something I learned today!).
- If you really wanted a bigger tire you could likely go up to a 35mm on this bike. You're going to want to look for a 700c x 35mm tire.
Have fun on your new bike! Let us know if you have any other questions. Hopefully this helps!