CNC Machined from US Aircraft Grade Structural Alloy, the Sonic Wing Mount is durable and lightweight.Features 30 different positions for a custom fitAnti-sway design features dual stabilizersOnly Compatible with the Cervelo P2Cs, P3Cs and P4CsIncludes: Sonic Wing chassis, Two Anti-Drag Discs, One Pair of X-Straps, Hardware, and InstructionsCarrier fits on the seat post so it works with most any seats and installation is easyIn the high position, the open-back chassis allows air to exitUse the included X-Straps to secure tubes or bags to the carrierMounting areas for up to two Gorilla Cages (Sold Separately)Use the Sonic-Nut (Sold Separately) to secure CO2 cartridgesTotal Weight: 104gItem SpecificationsColorBlack