Quote Originally Posted by madisongrrl
The tubeless tires are going to weigh slightly more than the regular tires, but it will depend on your tire selection, the weight of your tube, how much stans you use, if you cease to use a seatbag etc.

I run Kenda Karma tubeless tires and they weigh in at 665g for a 26 x 1.95. A similar tubed tire is the Karma DTC which weighs in at 450g for 26 x 2.00. For the tubeless tire you have to add in the weight of the stans (I use 1.5 scoops of stans with the suggested amount of water), but that is offset by the weight of the tube for the tubed tire set up.

I no longer carry a set bag but I have this special C02 system that attaches to my seatpost.

Here is a picture...
http://cgi.ebay.com/INNOVATIONS-MICR...ayphotohosting

Your wheelset must be tubeless or tubeless ready to run this kind of set up.

Read more here...
http://www.kleinbikes.com/us/support.../tubeless.html

My tubeless is actually lighter (overall) because I don't carry seatbags, tire levers, or tubes. I really like this set up and I have very few worries when I'm racing.
Thanks for all the great information! This is something I will definitely have to consider for the future, but right now I've just put nearly $2K into a used Titus Racer X plus repairs and new crankset, so I don't see a new wheelset in my immediate future, but perhaps down the line. I love the idea of not needing to carry a seat bag and being able to run lower tire pressure. Since I only weigh ~105 or so, I tend to run lower pressure anyway, so I figure a pinch flat could happen eventually (but I'm willing to risk it until it actually happens!)

Thanks for your informative, thorough explanation!

Emily