Are there different air can options for a more progressive or linear feel? Yes! There are two air can options: Solo Air and DebonAir+. Solo Air is offers a more linear air spring curve, while Debonair gives a more progressive air spring curve. Related articles How much air should I have in my RockShox rear shock for my rider weight? Can I change my RockShox DebonAir or Solo Air fork to Dual Position Air (or vice versa)? How much air should I put in my RockShox fork for my rider weight? What is the difference between the RockShox DebonAir+ Linear air can and Progressive air can? Can I upgrade my current RockShox fork with a DebonAir+ airspring?