As you may imagine, the Tubi is sized for tubulars or "sew-up" tires.
Great for a clincher or tubular spare.
Carrying all this extra stuff is the way to make friends and influence new chicks on the ride.
The CO2 cartridge can be placed inside the first fold or on the side
The Tubi is skinny, so as not to touch you or your expensive Euro shorts
The strap is double sewn so you can cinch the bag tight