There was absolutely no problem in the front : the front fork is wide enough to go with even wider tires. The back was another story .... Since 28mm tires are wider, they do not fit between the brake pads when fully inflated. That's no problem, just inflate the tires when the wheels are back in place. So far, so good. After inflating the tires properly, I put the bike back on it wheels and wanted to take it to the front of our house. It sure looked nice, those beefy tires on a road bike ( I do like beefy tires !) But the rear wheel did not move, it was blocked ! No, it wasn't the brake shoes, the rim was free. When I looked a bit closer, I noticed that the rear tire got stuck underneath the rear brake caliper, preventing it from moving at all ! Damn !!!
Plenty of space with the 23mm tire ...
but not so with the 28mm tire !It is only a matter of maybe 1mm, but as you can see on the second picture, the tire really touches the inner rear brake caliper. I called my local bike shop and explained my problem. They told me that I could try the new Shimano 105 rear brake caliper, which is slightly different in shape and might just be different enough to have the wheel fit. Another solution was to try another brand of 28mm tire, or change them into 25mm tires. I'm gonna take my Z Pro to my bike shop to try out that new 105 brake caliper and let's hope that it will fit !!!
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