Originally Posted by DaveSSS

There are two other dimensions to look at - the seat tube angle and the head tube length. It's really the head tube length (with the headset) that determine's the bike's vertical size, not the often meaningless frame size number. The STA is relevant because it affects the reach. If the STA is 1 degree steeper, it increases the reach by about 1cm.

Compare the head tube length on your current frame to the new one, making proper allowances for the headset on each one. Then you'll know if the larger frame is appropriate. For example, the the HTL is 10mm longer, it means you can use 10mm less spacer under the stem.

What other people ride is irrelevant. Some may have a touring setup with a 2cm saddle to bar drop and someone else will have a 12cm saddle to bar drop.