I’m also 190 and I’m now on a 38cm Bar, I Think I could go down to 36 with flare and that wouldn’t feel to narrow, my new Supersix evo (last generation) came with a 44cm Bar, that felt sooo wrong, I really don’t get why they still spec very wide bars on bikes… If the Enve Bars weren’t so expensive I would really like to try one…
If the new SL8 Cockpit doesn’t come in 38 that would be laughable and I doubt many riders would be too happy…, as a Consumer it is still infuriating that you can’t just spec the cockpit you need and instead need to buy another one for 400+ .
A bit of chat over on WW about minimal shaping changes but maybe applying a fair bit of what’s been learned about layup from the Aethos to get the frameset even lighter.