One more thing I can mention. I'm not sure how to measure my current MTB, but I'm almost positive the frame is too big for me. I don't have basically any clearance over the bar when I know you're supposed to have an inch or so.

At the time it wasn't a big deal because it was just a out on a Saturday afternoon type of bike and was on super-clearance and was the only size they had. I've ridden as much as 28 miles on it, but my hands get really numb despite using gel gloves.

So tossing in that factor... do you think it's a bad idea to just switch out the tires? I guess I'm tempted to get a road bike because I know it will fit better, but I'm just hesitant to spend that much $$$. But given my 25 mile bike ride in the Oly I'm wondering if it would be silly to ride/spend $ on my current bike that I know will cause me hand comfort issues.