I have the Mavic CXP wheels which I have ridden for a while now and love. I've built up a new conversion and wanted to use these wheels on it. It is a steel frame Nishiki. The rear wheel fits fine, but the front wheel is a tad too wide for the front fork. I can fit it in, but not without a little bit of forcing so that the fork is more stressed than if the wheel just fell into place without any forcing. Is this dangerous, or is it something that I shouldn't have to worry about? Another issue is that there is a tiny bit of surface rust on the inside of the fork where the main part is connected to the lug. So I guess I'm just concerned about the stability of the fork, and I don't want to risk it splitting in half while I'm riding it, but I also don't know if this is an irrational fear.
Either way, I will probably be getting a new fork for it as soon as I have the cash, just so I don't have to worry about it. But my other ride is down at the moment so this is all I have.
It's totally fine AFAIK. Steel will bend quite a ways and instead of snapping like a piece of glass it tends to just deform like, well, a piece of steel. You'd have to punish your fork to a far more ridiculous extent to actually break it.