Re: 18 To 20 Tooth?
Yes... like CC said it will make your peddling easier from a dead stop as it lowers your gear ratio by 2 teeth. It will give you a little better braking power ( on a coaster brake, of course) in that you'll have a bit more leverage and it engages quicker because of the larger diameter. On a freewheel type rear cog it will have no effect on your braking whatsoever.
On my bike I dropped from an 18t to a 16t because my front chainring is only a 36t and that was to low of gearing for my taste. I'm also running a freewheel, not a coaster brake. Hope this helps,cheers.
EZ Motorbike Dealer - San Diego, CA.
Nothing is out of my realm,
if it doesn't fit, make it fit! Beer is the answer....what was the question?
A sense of humor
costs nothing, why don't people use them more often?
"You can't buy respect.....you have to earn it"