I wrecked my LeMond Zurich, looking to put most of the parts onto a cross frame & buy a new road bike! I have Ultegra 9sd crank 39/53, ultegra rear der and shift/brake combo plus 12-25 cassette. I've got lying around nice Avid shortys, plus my bar, stem, seat post, 1 1/8 head set, saddle. I've also got lying around a 105 rear der, and probably some 105 triple cranks, square taper. I'd need some wheels, not a problem figuring that out. Regarding the crank, can I put lower gearing/smaller chainrings on it, since it came with 39/52? Or would the triple work better? Typically what size front & rear rings/casettes are used and will the ultegra short cage der. work? I'll do a mix of road, commute and flat-ish trails & dirt. CO front range mixed riding.