The top chart is my folding Tern C7 (52T chainwheel, 14-28T 7 speed cassette) and the bottom is my touring/everyday bike (26/36/48 & 11-34T 9 speed). The mph is for a cadence of 90 rpm. I tend to pack on the "heavy" side and do low mileage. My last campsite overnighter (this month), I packed heavy on purpose (a little experiment) and my luggage weighed in at 31kg (everything including tools, food and water but not the bike). I'm not a strong cyclist but I managed the Warwickshire hills without a struggle (but it was still hard work for me).