Are bicycle wheels interchangeable and can I replace mountain bike wheels with skinny racing wheels?

Answer 1

Possibly. There are some things to consider, so let's look at them. Are the axles the same width? Are the wheels the same diameter? Can you adjust the brakes in far enough (if they're that kind of brake) to clamp onto the new rims? This sets aside considerations like the cassette (gear cluster) on the rear wheel and how many gears it has, how big or small they are and whether the cluster will work with the existing derailleur. Not sure why you'd want to do this kind of wheel swap, but think it through and measure things up before picking up a wrench. You may want to ask a bike mechanic, just for fun. But buy him a cup of coffee or a cold drink first so you don't get laughed at. We're not treating your question as anything but an honest inquiry here, but a bike mechanic, who will be able to "see through" all the challenges, may see a bit of humor in the inquiry. He will, however, know what the issues are and may be of some help. Good luck.