Thinking about swapping out the rear cog on my Electra Cruiser 1 to a 18t instead of the stock 22t cog. How much of a difference would there be going from a 22t to an 18? I've never messed with gearing before. Also, what gear ratio do you guys prefer and why? I'd like to hear some personal testimonies. (I Already read the Sheldon Brown article on gear ratios etc.)I find 44/22 is good for a bike that weighs over 35lbs, like on my Electra Rat Rod, but the Cruiser 1 is a bit lighter, and I seem to spin out on flats/decents more so than the other.