yeah, tube-shock. they seem to have goten super expendsive. 5 bucks on average. after living in the city with (nyc) no bike for almost a year (no funds), i had to wqalk/subway, but mostly walk everywhere. when I got a beater, it changed my feelings about the city. now keep the beater, with the largest wald basket locked outside, and my fixed inside. ride fixed to work and for fun, as for everything else, i;m on the beater haulin stuff. you can fit an amazing amout in those baskets. once had an oll cast iron sink and pedestal in it (at least 100lbs). running a big ol ritchey moby bite with somewhat low peressure (too low), and it was pretty sketchy, but the basket and the tire held up.