The Gator Cog 40 (40 tooth) or Gator Cog 42 (42 tooth) don’t make hills disappear nor do they come with motors but they do have a whole lot of teeth to make getting up steep hills a 'snap.' We use CNC machined aluminium that has been shaped to improve shifting and handle the torque from monster riders, so you know this cog won’t snap under stress.
Just add replace your lowest cog on your 10-speed cassette and remove one of the middle cogs. You won’t miss the middle cog but you’ll notice that you spend less time walking up steep hills and more time riding.
TK440: 78g , 40T
TK442: 79g , 42T