I have 170 on one bike and 172.5 on another. I don't really feel a difference. I am 5'11 and 30" Inseam.
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Brian | 2023 Trek Domane SLR 7 AXS | 2023 Trek CheckPoint SL 7 AXS | 2016 Trek Emonda ALR | 2022 Trek FX Sport 5
you should learn to embrace change, and mock it's failings every step of the way.