So my racing bike has taken a lot of hard use over the past couple of summers and I haven't changed much. The Vertex frame and Crossmax wheels are holding up fine but the rest of the components are starting to give up the ghost. I would like some opinions on alternatives to simply replacing these parts with the same bits. My experience with a range of components is limited therefore I have to ask. Forgive my ignorance and thank you.
The XTR chainrings, XT cassette and chain are getting pretty worn. Is the XTR cassette worth the extra dough? How about more durable chainrings? I'm very satisfied with the XTR crank but how about Race Face , Truvativ or FSA. Can they match or better the XTR crank?
I've been using 959's over the past couple of years. Are the Titanium Egg beaters or the Candy Ti much better or are they just lighter. How about Xpedo Ti?
Exchange the somewhat heavy older Ea70 seatpost for what?
What fork might suitably replace an '04 Marzocchi Marathon SL??
The XT disc brakes work very well but are becoming maintenace intensive. Replacement?
Finally, get rid of the flippies and go with SRAM X0 triggers (and therefore derailleur) which also means getting new brakes or at least new levers. Good Idea?
Start from scratch and build a new rig.