A year ago I bought a Lemond Poprad as my main ride; I put a compact crankset on it and a more "aero" stem so that, with a quick change of the tires, I could ride on or off road as my whims dictated.
Lately I've been riding more off road than on, hovering around the Fullerton Loop. While I love the Loop, one trail tends to get boring after a while.
So! I work in Irvine and I know there's lots of MTB trails around here. Does anyone know if there are some trails that would be cross-bike compatible?