Lezyne Control Drive CO2The days of lugging around a hand pump are over, say hello to the Lezyne Control Drive CO2. This innovative and compact CO2 inflator allows you to fine-tune how much air you put into your tire with an integrated control knob. The inflator head is made completely from CNC-machined aluminum alloy and features brass internals for a premium construction that will last you many rides to come. The CO2 Control Drive weighs in at just 24 grams without a cartridge and the head can accommodate both Presta and Schrader valves. Features Inflator only does not include CO2 canister CNC machined aluminum dispenser with twin slip chuck head presses onto Presta and Schrader valves Brass internalsfor added longevity Control knob fine-tunehow much air you want Neoprene sleeve insulates hand from cold during discharge Weight: 24 grams (without cartridge)Available Options Head and sleeve only Black, blue, red, purple and silver | Lezyne | Control Drive C02 | Red | Head Only