I've been messing around with Sheldon Brown's Bicycle Gear Calculator and mapped out the ratios on my bikes. While riding I tried to take notice of which gear I preferred on each and it turns out on level ground I like a gear of around 85 to 90 inches. This was a pretty useful exercise because it showed me I should swap the cassettes on two of my bikes and helped me develop a shifting strategy for hills on my normal commuter that uses the gears more effectively. It got me wondering what gear other people are pushing?