The topeak joe blow fatpump is specifically designed for low pressure fat bike tyres the massive oversized barrel moves large air volume fast and efficiently whilst the oversized padded handle makes it easy and comfortable to use the head of the pump allows for both types of valve presta and schrader this means you are also able to use it on your smaller bikes for a safe and secure fit on the valve the head is attached to a 160 cm long hose for precise tyre pressure the pump features an ai