Bumping this thread as I'm thinking about on frame storage on my new bike, a 2022 Patrol which has bosses on bottom of toptube and can fit a 750ml bottle. Current setup is water bottle on bike and Osprey fanny pack with 2x 600ml bottles and all tools including Topeak Race Rocket MT mini pump which I just bought after an annoying co2 failure (to DC's point above, tire bead wouldn't seal from 2 co2's, tread puncture repair was fine but after wasting my xo2s I couldn't throw in a tube cuz no way to inflate it). 750ml water is enough for majority of my rides which are 1-2.5h on the shore so it has me thinking of ditching the pack, but I can't decide between:
1) EDC tool in steer tube (with small capsule w/ tire plug kit, Fox 38 cannot fit the big capsule or co2) + Wolftooth B-Rad mini with tube + extra lever + CO2 - I think the mini can fit those 3 items.
2) EDC pump 100cc with EDC tool + storage capsule with tire plug kit and ?, B-Rad mini tube/lever/co2.
#1 is cleaner, don't have an $80 pump exposed to the elements every ride, but have to rely on co2.
#2 I get the pump, but honestly this is my first flat outside the bike park in 5 years (DD casing tires and I am not a shredder) so co2 is "fine" for shorter packless rides. Anything over 2h or on hot days I am likely bringing the hip pack for water+food anyway which fits my Topeak pump. If I have to walk out of one of my typical Shore rides once every few years it's not a huge deal, but I don't get many chances to ride Squamish/valley these days so it's those longer rides I care about and will have the pack/pump.
For my 1-2 long/alpine rides a year I have an old 3L bladder backpack for water/food.