I know that there are a ton of topics on this but some of the stuff in it doesnt really make sense to me. Like gear inches? What exactly does that mean? Right now my gearing is 40X16 which is kinda alright for hills but sucks going down them. Around here i cant get anywhere with atleast going up one decent sized hill. Mostly everything else is flat or very low grade hills. What would be a good gearing to use? Or can someone explain gear inches to me and ill experiment to figure it out myself. Thanks in advance.