Rode 35 last night and averaged 19.5 then rode 33 tonight and averaged 17.5. Tapering off the rest of the week for my first MTB race sunday at mohican.
Sounds like a good ride! Got out today for 30 miles and averaged 17. Taking tomorrow off then riding Mohican Thursday and then a 62 mile ride Saturday morning.
Crashed my fixed gear today being an idiot. Hip and knee took most of the impact.
http://i200.photobucket.com/albums/aa72/mckinney16/306200_2990181559880_1065686154_n.jpg
That 55 will be perfect for you. I am 6'0" with a 34 inseam and ride a 54 cross bike and a 56 road bike. The price is a little high. I would shoot for $500-$600.