bicycle / bike pump
1.beautiful bicycle pump
2.practical bicycle pump
3.ISO 9001 Quality Guaranteed Certificate
4.new-designed

bike pump/air pump
1.iron bike tire pump
2.size:30*570mm
3.high pressure,light weight
4.usage:bicycles,electric cars

 bike tyre pump/air pump
1.metallic surface
2.iron base,plastic handle,iron base
3.mutifuction nozzle
4.polyurethane soft tube  

bicycle pump is a type of positive-displacement 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 Woods valve exists, but tubes with these valves can be filled using a Presta pump.[1]

Several basic types are available:

Floor models or track pumps
frame mounted
Compact or mini
Foot operated
Double action
In its most basic form, a bicycle pump functions via a hand-operated piston. During the up-stroke, this piston draws air through a one-way valve into the pump from the outside. During the down-stroke, the piston then displaces the air from the pump into the bicycle tire. Most floor pumps, also commonly called track pumps, have a built in pressure gauge to indicate tire pressure.

Caution must be used when using a gas station air pump. Some are designed to cut off before the high pressures used in many bicycle tires are reached. Other operate at such a high pressure that the tire can be burst. There is also a slight difference between the modern standard for Schrader valves on an automobile and that on a bicycle which makes some more recent valves on gas station pumps a poor fit.

There are three main types of bicycle pumps

• Stand pump
• Hand pump
• Foot pump 

Stand pump

Also known as a floor or track pump. To operate the user rests the base of the pump on the floor, resting feet at the base, and pulls and pushes full strokes with handles. An additional tube must connect the pump to the fill valve, which may create dead volume.

 Hand Pump

There are two basic types: tubed and integral. The tubed type requires a separate tube to connect the pump to the valve. These have the advantage that they are cheap, but are inefficient compared to other pumps. They also have a lot of joints from which air can escape.

Integral pumps have a hole in the side with a rubber washer that fits round the valve. This is frequently compressed on to the valve by an extra lever. Because it is well sealed, rigid and has little dead volume, this type of pump is very efficient. An 8" integral will typically pump faster than an 18" tubed.

A simple pump has a cupped fiber or plastic piston. On the forward stroke the air pushes Foot pumps