Cane Creek has now introduced their DBAir XV, an extra volume air can built specifically to compliment bikes with progressive leverage ratios.
The XV is currently offered in three sizes, with more coming soon:
200 x 57mm (7.87 x 2.25”)
215 x 63mm (8.5 x 2.5”)
240 x 76mm (9.5 x 3.0”)
Bonus: You can read tons more about the Cane Creek DBAir on SickLines. They have a great article on the XV canister and lots of videos on the DBAir.