LEZYNE Control Drive CO2 Bicycle Tire Inflation System w/Cartridge Bike Brand_Quintana Roo 2 x 25gr cO2 cartridges

2 x 25gr cO2 cartridges

37 - 47 in half sizes

The Standard Bearing has CeramicSpeed Balls and hardened-steel races

For a long day in the saddle

Add in spike mounts

LEZYNE Control Drive CO2 Bicycle Tire Inflation System w/Cartridge Bike Brand_Quintana Roo 2 x 25gr cO2 cartridgesCNC machined aluminum dispenser Control knob twists for easy inflation Twin Slip Fit head presses onto Presta and Schrader valves Neoprene sleeve insulates hands from cold during discharge Available with one 16g, or 25g CO2, or as a head only Compatible with threaded CO2 cartridges only A durable CO2 dispenser constructed from CNC machined aluminum, the Control Drive CO2 features control valve operation for easy, precisely controlled bicycle tire