Wow, I see my post got a lot more attention than I expected.
I'm new to the bike scene, so there's a still a lot for me to learn. Purpose of my question was to gain a little bit of information, to avoid ending up with something I would later regret. From the comments above, I ended up going with a
Kalloy Uno from ebay.
The only negative feedback I heard (on another forum) was that the bolts on some of these posts are cheap, and unsafe. I read that one rider had his bolt break in half on two separate occasions from a Kalloy post, the second time seriously injuring himself. I'll be riding this bike in the city; crazy and congested traffic is not uncommon. I don't even want to think about a crash!
I don't care about flash, if anything, I'd prefer my bike go unnoticed. Bike thefts are common here in Philly. I'm just looking for something that 'works' and I think the Uno will do me justice.
Oh and.. regarding dimensions, I'm confident in it being a 25.8mm. All I knew originally was that it is a mid-90s DB Sorrento. After a little research, I found a
seatpost database showing a few 1990s Sorrentos (who woulda thought). I still wasn't sure of the year, but after taking a caliper (accurate to .001 of an inch) to the bike frame, was able to measure just about 25.8mm. Therefore.. I think it's safe to say its a 1994 Sorrento
