On Saturday, December 7, 2019 at 3:28:56 PM UTC-8, wrote:
As part of the ordering process of my gravel bike I was measured last Wednesday to determine the correct frame size. The measuring program didn't take the handlebar/shifter/shifter position into account in contrast to saddle make and type. I found that strange because most of the time you are riding on the hoods. It was a rainy day yesterday so I took the time to measure all my current bikes which I adjusted by 'feel' giving the purpose/riding style of that bike. Results:

https://photos.app.goo.gl/1HbWyM6g1gNqoyMx5

So today I went back to the LBS (another 100 km round trip) to discuss this. In the meantime the manufacturer emailed the shop a drawing of their proposal. Strangely this drawing did show the measurements of the position of the shifter on the handlebar and this came very close what I measured on my bikes especially measurement E, F and D. With the mechanic we figured out the correct frame size taking the chosen handlebar, a stem length of 110 mm and the new Ultegra shifters and the manufacturers proposal/my measurements into account. My question is what do these measurement programs exactly do? Are there people that close a bike only based on these measurements?

Lou

Lou, if its a compact, buy a "medium." Done. Why should it be any more difficult than buying one of your Canyons?

The measurements are intended to impress you. Shop drawings and proposals?
What, are you buying from General Dynamics? What are you buying?

Back in the day, seat tube length was a big deal, but now with compacts and long seat posts, the important measurement is TT, so I suppose they're trying to get your TT just right to size the bike with a stem that is not too short or too long, which might affect steering in some metaphysical way. Unless you're built like ET, they'll pull a "medium" out of stock, declare it custom and hand it to you.

-- Jay Beattie.