Lezyne Twin Drive Kit The Lezyne twin speed drive is CNC'd from durable 6061 T6 aluminum for a maximum strength to weight ratio. The twin head is compatible with both Presta and Schrader valves; this makes the twin drive super versatile. A simple threaded valve operation allows for simple inflation. The inflator head also has replaceable "O" rings that can be replaced when needed. The twin speed drive co2 inflator is only compatible with threaded co2 cartridges. The Twin drive kit comes complete with Twin Speed Drive head, two threaded 16g CO2 cartridges, lever kit, and neoprene/Velcro strap to hold it all together. This kit is tight, compact and powerful. Features Compatible with Presta and Schrader Valves Made from Durable 6061 T6 Aluminum Replaceable "O" rings Compatible with ONLY Threaded CO2 Cartridges Two Tire Levers Includes 2 Threaded CO2 Cartridges, choose 16g or 25g cartridge-equipped kit, 16g for road bikes and 25g for mountain bikes. Neoprene/Velcro Strap SHIPPING RESTRICTION This item is classified "ORM-D" and cannot be shipped via air. It can only be shipped via ground shipping methods. If you add this item to your cart, the list of available shipping methods will be reduced. For more variety of shipping options, consider removing this item from your cart (or placing a separate order using a ground shipping method. ) | Lezyne | Twin Drive Kit | Lite Grey | Co2 And Lever Kit, 16G