In connection with Giant DK measurement of saddle reference point.
1. Does this formula apply for purposely designed wider saddles? I am currently on a Specialized Toupe 143mm.
2. The Toupe is 27cm, compared to a reference Selle Italia saddle which is 28cm the reference spot is 1,5cm further from the nose on the Selle compared to the Specialized. Does this mean I should add the 1,5 to the recommended 9,4 setback?
3. Something does not add up in the spreadsheet or with my fit. I am currently on a 58tt, saddle 27cm, recommended stem length is 110mm which I currently run with a 8cm drop. I now have saddle to handlebar distance of 56cm, but setback of only 8cm. The spreadsheet recommends 9,4, but then my saddle to handlebar would be longer than recommended again. Shorter stem? I refuse to go shorter than 10cm.... If you add the proposed extra setback from point 2 above I should have a massive 2,9 more setback than at the moment and would need a 8cm stem to achieve the saddle-handlebar recommendation. This can't be right or is the top tube simply too long?
4. 90cm inseam 51 elbow-middle finger, what does this say about my body proportions? 189cm overall.
If the refference spot on a Selle Italia is 1,5cm further from the nose tip, the saddle should be placed 1,5cm further ahead to make the refference spot be at the same place in regards to the BB.