What nimber of teeth front and back is everyone using? I cracked my stock 34t ring and now I'd to run a little more compact set-up. My background is heavily xc, so I'm relatively new to the newer single speed compact ratios. Currently my set up 34/16 and I like it pretty well. With all the riding from spot to spot across town I'd consider more top-end, but it's not overly important. Any input or opinions would be awesome. Thanks