Zondas work great with 25mm tires and reduced pressure. The ride is greatly improved over 23mm tires with 10-15 psi more pressure. I have them on two bikes. They will also accommodate 28mm tires with no problem. Campy/ Fulcrum recommends their 17mm rims for 25 to 50mm tires.
Last edited by DaveSSS; 10-26-20 at 06:36 AM.