Lezyne trigger speed drive co2 inflator silverthe lezyne trigger drive co2 inflator is perfect for stowing into a jersey pocket or saddlebag due to its lightweight and compact construction. The twin chuck head fits presta and schrader valves and an anti freeze jacket is included for hand protection during use.cnc machinedcnc machined aluminum parts for precise and durable constructiontrigger valve operationpress on off valve operation functions like a trigger, providing easy and precise inflationthreaded connectionintegrated dual threaded inflator head threads directly onto the valve for a secure, air tight connection during inflation. Compatible with presta, and schrader valves. About co2 pumpsco2 bicycle pumps provide you with a compact and swift solution to inflating your tyres, ideal for races or cold evenings when you need to get back on the bike with the least amount of downtime. Co2 cycle pumps fit in your pocket, saddle bag or to the frame leaving space for plenty of other ride essentials. Replacement co2 cartridges are readily available in various sizes to suit your needs featuressmall length 170mm. Weight 87mmmedium length 216mm. Weight 100gmax 120psi, 8.3 barbuy lezyne accessories from chain reaction cycles, the world's largest online bike store.