I’m 6’ and I’m on a medium Speed Concept with a long/low stem. I’ve been toying with the idea of increasing the height of may aerobars by stacking multiple (I’m currently running 2) pad wing spacers under the aerobar rather than changing the stem to the long/med stem. I’m thinking of adding at least 1 (maybe 2?) more spacers (a total of 20mm in spacer height).
Aerodynamically speaking, is having the greater separation between the base bar and aerobar faster compared to running the base bar and aerobar closer together without any spacers but a taller stem?
Yes, I know, people are cringing, but offseason has me tinkering with my fit (as well as lower back pain).
It’s technically possible to stack multiple pad wing spacers (given you swap to longer bolts), but it will negatively affect your forearm angle in relation to the aerobar ends, where you grip them.
So I’d start getting a taller spacer rather than stacking multiple pad wing spacers.
If you have mechanical shifting, it’s way easier to replace the stem though, only need to touch the front brake. Replacing the spacer requires to disconnect both shifter cables, as they run through the spacer.
