Cyclocross Build - Newb advice
Ok, longish time BF guy here, but I'm a road/tri guy. I realize there is a search function, but I'm looking for some specified advice, so save it.
I have a 7800 DA 10sp and a compact crank lying around on a winter/bad weather bike. I'm planning on building this into a CX bike. First question, 10sp work alright?
Second, I'm looking for a CX aluminum frame, but I'm not sure which direction to go. Looking at CAAD9, Spooky, Ridley, Salsa, etc. Please weigh in, is there a good place to find used framesets?
Third - I ride a 54cm road bike, do I stay consistent with that or do people usually size down for CX?
Fourth, I'm fond of Aliante saddle, does this work well for CX?
Fifth and final - any changes I should be aware of in my geometry? Lower saddle height? Bar width (42 road)? Stem (110 road)? Planning on 3T ergosum (same as road) Thoughts? I can use road wheelset with CX tires right?
Appreciate the advice, sorry I'm too lazy to search all of this out.