The Lezyne Flow Storage cage is a fibre reinforced Composite Matrix cage with an integrated storage container.Durable, fibre reinforced Composite Matrix construction. The Lezyne Flow Storage water bottle cage has an optimized side-load shape for easy bottle access in compact frames (right side configuration only). Integrated storage container below the cage with CO2 cartridge holders on both sides of the cage. The Lezyne Flow storage cage is engineered to hold bottles securely with oval mounting holes which allow fine tuning of position on frame. Key Features: Composite Matrix.Side-load.Integrated storage container.CO2 cartridge holders. Loaded version comes complete with: Flow Storage Cage.FCO2 Head.FV16 Multi-Tool.FSmart Kit Glueless Patch Kit.Fwo included CO2 cartridges. Weight: 94g.