35 Kg of luggage 77 lbs********** I think you really need to rethink that, add in the bike and you are at ~50kg/110 lbs to lift when
10 speed it older tech and using it because you have it is likely to be poor economics
at minimum you should go for sub compact or mountain crankset...or even a triple as IMHO you need to get smaller in front
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Life is too short not to ride the best bike you have, as much as you can.