What are the differences between a presta valve and a schrader valve, and how do they affect the choice of pump for inflating tires?

Answer 1

A Presta valve is thinner and longer, while a Schrader valve is shorter and wider. Presta valves are commonly found on road bikes, while Schrader valves are more common on mountain bikes and cars. The choice of pump depends on the valve type - a pump with the appropriate nozzle is needed to inflate the tire.