170 or 175mm Hollowtech square taper, 104/64 4-bolt cranks: $35 at Nashbar
690g on the scale, with steel inner and middle chainrings.
Bashguard for above: $15 at Nashbar
Don't forget to find coupons: there's always 10% off and sometimes more.
Theoretically they are 8-speed IG. However, this will make no difference if you are SS, and very little if you are 9-speed.
Sadly I cannot use them right now.
