To start I jusy want to say hello to everyone on the forumn. I am also a Clydesdale at 6'3" and 260. I am pretty new to cycling and have ALOT of questions. I have been riding for about 4 months now and have learned quite a bit along the way (not always the easy way or cheap way). One question I have is that I see people talking about the cranks and ratios like "11-28 rear cassette", what does that mean? I am ttrying to learn all I can before I buy my new bike next year so I don't make the mistakes I did buying the VERY cheap one I did this year. I have had nothing but issues with it. Thank You.