57cm is what i ride and im 5'11" with a 33 inseam
i think you would do well with a 55cm
let the haters hate, but a bianchi pista is a good bike for the price, not to many other new track bikes can match its build quality
when i was looking for a new bike to replace my old bike, i looked into iro,pake, schwinn, fuji for a beginner - middle level track bike to try out. Bianchi pista was my best option yes it is super common, and its a hipster mobile, but seems to me if you care more about what other people think instead of quality, whos the real snob.
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