So this is the story... I bought a raleigh triumph a few months ago to see if I would actually like riding. Turns out I love it and want to upgrade, the only problem is that it seems like any new parts aren't compatible. My main concerns would be with the wheel set. I bought a set but the guy at my lbs told me that they wouldn't work on my bike although I feel like they would. I would need to put a cassette on the new wheel set. So I took his advise and got a new freewheel and chain for the old wheels. The originals are awfully heavy and I have just learned the hard way that they are near impossible for braking in the rain.
Also, I want to change the crankset. Again, I'm not sure if newer cranksets are compatible. Other than that it seems like new brakes are not going to work because the bolts are wider than the brake mounts on the frame. Sorry if it seems like I'm rambling but I would love to put this new wheel set on. And I hate to admit defeat. Please help.