Big Block Generations
![white all city bike against a brick wall](https://allcitycycles.com/images/blog_preview/_blog_preview/5939958743_e87a987418_b.jpg)
The Big Block was our first model, designed way back in 2008 and continuing virtually unchanged today. Well unchanged in geometry and tubeset anyway, there have been a number of small tweaks to the bike over the years that would allow one to distinguish one generation frameset from the next. As we're giant flipping nerds, having the information to tell them apart is the sort of thing that we find terribly exciting.