i've been having the EXACT same dilemna, and will chime in that there is no ready made version of what you describe.Cannoli wrote: ↑Thu Jan 28, 2021 9:14 pmI didn't take the seat flex into account, but that is very valid. I was planning on storing a Schawalbe Aerothan tube, a small tire lever, and a Bontrager Elite multi-tool, all very small items. Despite being able to fit in the space under the Selle Italia Boost Superflow (pretty big opening), the other factors raised here can't be ignored. Regarding the pump, I currently carry a Lezyne Carbon Drive pump in my jersey pocket, along with food and my phone. I suppose I could also carry a small pouch with the above as well.
what is being lost in this conversation is that aerothan/tubolito tubes are roughly 1/3 of the size of a regular butyl inner tube, so a super thin conti tire level and a small multitool should be able to fit in this space when wrapped efficiently. i might still have my wife making something to this effect.
i ride a spesh power so i ended up compromising with a cheap amazon saddle/gopro mount for my rear light, with a speedsleev under. it's about as good as it gets for a discrete saddle bag, esp when you cover the speedsleev logo w/ black marker
otherwise, i have a rapha saddle on my gravel bike, and the rapha saddle bag fits really flush btw the rails, and its pretty discrete. it may do that for most saddles, as the rail shape/width should be pretty universal
