Beginner "rim" question???

Here's a primer on the differences. Do a forum search, there are tons of threads discussing the pros and cons of each.

Most likely you have clinchers, and won't consider tubulars until you start looking at aerodynamic race wheels.

Thanks Bear for the link. That cleared up the difference between rims.

Now how about the issue of weight(mine) vs. style or type of rim ... or isn't this an issue?

Some of the lighter (especially carbon) rims wouldn't be appropriate for you, bu many of those are made in a "Clydesdale" version.

Tp get back to your original post, I would think twice about buying "inexpensive rims hopefully a step or two above my stock Trek 1000 rims." You probably won't gain a lot of benefit by doing this, unless, of course, you're having problems with the stock wheels. Instead, put that money into a New Bike Fund for a future upgrade.

Good advise however, as much as I would love a "sexy" new tri bike, that won't be happening. For me the benifits just won't out weigh the cost. I'm a middle to BOP guy and fine with that. I love the sport but only compete against myself and the obvious health benifits. I'll more than likely ride this bike untill it's dead and replace it with something similar.

I'm thinking newer upgraded rims (hopefully less than $200 per) simply because road conditions in SE Michigan pretty much stink and this year I seem to be getting more flats. I need to have my rims checked I'm sure, but want to be prepared/informed when the "Doc" says we need replacement parts.

It's more likely that your tires or your rim tape is causing your flats than your wheels. Cheaper fixes are the best kind.

Again, I'd be surprised if any wheelset under $500 would provide a significant upgrade to what came with the bike.

Thanks... I'll start with those suggestions and see where it all ends up.

Thanks again