Volume tuning kits for Fox rear suspension. Reviews There are no reviews yet. Be the first to review “FOX Float CTD/DPS Air Spring Volume Tuning Kit for 2013 or newer Float Shocks, 9mm Shaft” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.