If it helps, I'm 5'2 and have the original CRJ's in a 164cm and wish I had gotten them in 172. Translated: 172 would be way to small for you for touring). I unfortunately destroyed the CRJ's after several bad snow seasons and can't really use them anymore. Sad that they're discontinuing them. I'd love to pick up another pair.
"This is complete bullshit. Stop spreading horrible granny panty propaganda already, you're making yourself look like a goddam vagina gaper." -Huck_Norris
Jaw Be Praised