Welcome and good luck on the distance riding. There are some post some around here that give some goo training tips on distance riding and ways to train for a century ride.
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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.