I’m most of six foot and found that my shoulders ached after similar length rides on a similar size folder. My solution was to install Soma Sparrow bars which provided a little bit of rise and angled my hands better while not adding hugely to the folded size and enabling me to keep the existing cables intact. Depending on how your handlebars are fitted to the handlepost, you might need one of those thingies by LitePro or similar linked to above too to fit a non-straight bar to your bike.