Stack and Reach
I'm browsing the forum over at Weight Weenies and they seem to talk A LOT about stack and reach over there. I've not picked up much on that here really. I'm in the market for a new bike and this gives me pause for consideration of how it should impact my choice. I might believe this is something that a bike shop would be best equipped to determine, but they are obviously going to only direct you toward the brands they carry.
I have been measured at one bike shop and was put off that they claimed they had a 'program' that would tell them what bikes were the best fit for me and it turned out the 'program' was their malware riddled computer being used to pull up bike manufacture websites and comparing their bike geometry graphics to my measurements one by one possibly based on what they had in stock I might guess.
I have short legs and a long torso. I know one of the suggestions was the Trek Emonda. I'm guessing this falls into the 'long and low' more aggressive race geometry being a good fit for me. I know I was only looking at endurance geometry bikes at the time and I wasn't really wanting to hear that.
I'm pretty clueless how he was judging my measurements against those geometry graphics and I'm gathering different manufacturers follow different principles for their sizing vs. reach. Cervelo for example seeming to more strictly adhere to proportions of reach for smaller sizes. It concerns me a little that I might have an unusual body type.
Is there a good online resource for learning more about this or is this something that most generally can be fitted with different stem if there is an issue?