I have a mismatched pair of 172 Atomic Triplets.
Long story short, I have one urban triplet and one regular triplet. The skis are the same dimensions and besides reinforced edges on the urbans, I dont know of any other difference... they'd make a decent uran set forsure
http://media.nscdn.com/uploads/member/pictures/1243441894DSC_0463.jpg
http://media.nscdn.com/uploads/member/pictures/1243442246DSC_0465.jpg
Feel free to message me with any questions.
thanks for looking!