Could use some advice from anyone in the know. I dabble in road biking, but spend most of my time on a mtn bike. Someone is offering me this bike as a trade for some expensive, custom furniture - worth about $800. My question is: what is this bike worth? I see it has DuraAce, which is nice, but the condition is questionable and I don't know the model. Wondering if anyone does. I don't think there's any rust or anything...Anyway, any thoughts would be appreciated. Thanks! Pics and specs below! Also, any guesstimates as to the size would be super helpful.