I live in a mostly flat area, so I can get away with using my middle chain ring most of the time. It occurred to me that I was unsure of how to smoothly switch from my middle to my larger (up front) when I was in my smallest gear in back. I know the mechanics of it but if I shift to my biggest ring up front while in my smallest gear in back, won't that be a huge change? I would think I would want to change the front and rear at the same time. If I do that won't I slip my chain? LMAO is your head spinning yet? When I was thinking of trying, I was a long way from home so I thought I better not mess up!