I've been riding my fixed bowery for a little over a year now and finally getting to changing the gear ratio. Currently its at the stock 46/17. I want something that kills it a little more, ie less spin downhill and more lets go win some alleycats. Should i go with a bigger chain ring and keep the 17t cog, something like 50/17 or should i lose some teeth off the back and keep that 46, something like 46/15. I live in Boise so I'm not worried about hills if that comes into play in the decision process at all. Thanks for any input