Should add this site to the list:
Makes it easy to see by picture how the frame diminsions differ.
If only there was a moderator who liked to link to other threads on the forum… :-p Maybe this:
https://www.trainerroad.com/forum/t/managed-to-buy-a-too-small-bike
I agree. Here is his into to it:
and more info in his blog here:
I think this is right on. I think it can be a useful metric but can be hard to use well in that it has to be taken in the context of other things. Plus it can be tricky to measure consistently
If you assume a road bike with a carbon steerer tube with all things being equal (i.e. handlebar drop is kept the same and handlebars are still the same height off the ground) wouldn’t having more spacers under your stem be more comfortable then a slammed stem. So a smaler frame with more spacers vs a larger frame with a slammed stem. The thinking being that the longer the carbon steerer the more flex there is in the steerer tube absorbing bumps/vibration in the road. From research I was doing into my next bike (still undecided) I’ve heard people say the SL7 became much firmer in the front due to the recall with the longer metal insert (i.e. decreases how much the steerer tube can flex)