Re: CA2 28m tires
The question is which brand 28c tire. For example, many Continental tires run wide for their size. The trusty GP4000s2 in 28 is actually over 31mm wide. It fits the CA2 fine in the rear. Won't fit the stock (non disk) fork in the front. However, Conti's new GP5000 in 28c is narrower and should fit the front as well as the rear. The width is also effected by the rim width. Wider rims make the tire wider too. I have a 28c GP5000 on the front of my CA2 using Bacchetta's 700c disk fork, and a 28c GP4000s2 in the back with the stock X-Eyed brake. Just have to let the air out of the tire to remove it past the brake shoes. I plan to change to a 28c GP5000 in the rear. Amazing tires.