Cane Creek DB Inline improved air sleeve kit with better and improved seals and tolerances.
The kit DOES NOT include positive and negative back up rings. The back up ring is very hard to ruin, and it survives during the whole life of the shock mostly always. You should re-use the existing back up ring, just clean and re-grease it, and put it back to its place.
The kit contains seals for several version of DB Inline shock, so don't assume you need to use all of them. The seal should fit its place, so start fitting from the largest. Use the one that sits tight, not stretched or loose.
Please contact me for damper kit if needed.