Mountain gearing usually ends up with a largest rear cog at a minimum of 30-36 teeth, road gearing usually 28 or smaller. Mountain gearing usually has a rear derailleur with a long cage to accommodate those bigger sprockets. Road gearing has a short cage. Front sprockets on mountain gearing is usually 48 and smaller, while road gearing will be 50 or bigger, on the big sprocket. Road gearing is leaning away from triple front sprockets, while mountain gearing embraces them.