I'm pretty clueless as far as gearing goes on bmx bikes. Whats the typical gear combination for something with a 9 tooth driver? I'm looking for a gear combo that compares to something like a 32-16 on a mountainbike.
good common gearing for BMX bike are combos like 30:11, 28:10, 25:9 etc..i run 30:10 and like it. wouldn't mind trying 28:10. on my 26er i run 27:12 which to some people seems high somehow, but to me if seems a little too low at times..
keep in mind of where the rake tabs if your going to be using brakes, i run 25/9 on my frame and the chain rubs. It did say it would accomodate that gearing but maybe only with a newer evo or fly brake. Currently im running the older evo version on a fly mosca frame.