Hi
I've owned this bike for 3 years now and I like it a lot. One thing I would like to do is to change the tires or the wheels to something more road bike-like in the hope of getting it to go a little faster. Can I change the tires, the wheels, or both?
I bike in the Catskills so there a lots of uphills and downhills, if that matters.

Thanks for your help.

Stephen