I'm planning to go on a long cycle this year and that last 20k is up a steep incline. I noticed i had to walk up the inclines that were steep and i thought i would have got a lot further if I had one or two lower gears.
I've got a cube travel pro 2020 (https://www.cube.eu/2020/bikes/tour/travel/cube-travel-pro-blacknbrown-2020/). Shimano nexus 8 speed gear hub.
i'm hoping that i can get a smaller front sprocket and larger back sprocket to lower the gearing ratio ? if so please confirm and if you have more knowledge help on my selecting the right combinations so that they will fit the current belt size. youtube installation videos or anything to bring me upto speed.
Another option would be for me to upgrade to an alfine 11 speed hub. I guess that's a solution, it would help if i could sell the 8 speed hub afterwards. https://www.veercycle.com/blogs/getveered/how-to-choose-an-internally-geared-hub