The Crank Brothers Gem Floor Pump has all the features a rider can ask for. The foot-activated high pressure/high volume switch allows you to fill up your tire with a blast of air, easily setting the bead and sealing up tubeless setups. The head is presta & schrader ready and it even comes with a needle adapter and plastic valve adapter for other uses. Get your tires up to pressure quickly and easily every ride with this floor pump.