I always marvel, therefore now I ask :$ At the moment I ride bike with +55 bb rise, 1065 WB, 145x25 stem, but I think this geometry is short for me ( I'm almost 190sm tall) Now I think to purchase frame with 30mm bb rise, 1095 WB and 130x20 stem. Therefore I need your help, I want to know, what are the shortcomings and privileges of high ( 55-60mm bb rise ) and low (25-30mm bb rise ) Sorry for my bad english, but I yet study it :$ Thank you in advance! Bozho