It is cheap but inefficient due to higher risk of air leaks through multiple joints.
Bicycle pump valve types.
Kitbest bike pump portable bicycle floor pump with glueless puncture kit mountain road bike tire pump mini bicycle air pump compatible with presta schrader valve and sports ball by kitbest 12 99 12.
Because the two valve types are different they require two different types of head on a pump or as is often the case an interchangeable head.
This type of hand pump features a separate tube which connects the bike pump to the tire valve.
There is minimal chance of air leaks making it more.
An integral bike pump has a hole covered with a rubber washer which fits into a bike tire valve.
A bicycle pump is a type of positive displacement air pump specifically designed for inflating bicycle tires it has a connection or adapter for use with one or both of the two most common types of valves used on bicycles schrader or presta a third type of valve called the dunlop or woods valve exists but tubes with these valves can be filled using a presta pump.