I'm 6' 180, I do aggressive single track, & pretty much all-mtn. I'll hit a park a couple times a year and do a 24 hr race or two/yr. I've narrowed it down to these two bikes but can not decide. Both in my $ range & specd well. I've ridden the 04' Reign 3 in Moab & obviously the whole experience was sick, but I've never ridden the XAM.
1st of all I'm not sure of the size I should get in the Giant. 18" or 20" The Jamis has a 19". Any info from you who ride these or have ridden both would be greatly appreciated.

-Indecisive,
Luke

Can the Jamis take the hits that the Reign can?