I live in a very hilly place around 20-30% gradient.
I’m wondering will a 280kv motor with a 2:1 pulley ratio pull a 160 pound guy up thowse hills or would a 3:1 ratio be better
6s battery 2x 5000mah
59mm wheels
120a esc
10T:20T
I think 16mm witdh timing belt
I had a similar scenario, I am about 10kg lighter, went for 10s, 13t/36t and mono 190kv 6374 with Kegel wheels. Works really well, can accelerate up most hills.
You need around a 3:1 ratio to get up a hill that steep and at least two motors to move up a hill with 30% incline. 30% is steep. There is no way you live around hills that steep unless it San Francisco, Los Angeles, or New Zealand.