The Affinity Metropolitan in Premium Rush looks like it's running Nitto RB-018 bullhorns (they say Nitto Bullhorns and they have no drop) but the stem is a Thomson 25.4 (can see clearly in Affinity video):

http://904fixed.com/affinity-premium-rush-bike/

Just wondering how that works since the RB-018 are 26mm bars. Wanted to run a similar setup but my stem is 25.4.