Bike nipple: types and device. Adapter for bicycle nipple

Over a long period of bicycle parts have suffered a lot of changes. Wheels of steel more difficult to manufacture the frame and transmission already is unlike the one that was twenty years ago. The only part that is from year to year remains unchanged for a long time - cycling nipple. Not to be mistaken in choosing a camera, it is important to know not only the size, but also have an understanding of the types of valve.

Bike nipple: types and device. Adapter for bicycle nipple

Standards

This part of the bike for many years did not suffer complex changes in design and even appearance. Therefore, at the moment only two popular standard nipples:

  • Presta / FV - French or nipple - is used on all road bikes and mountain bikes high level.
  • Schrader / AV - in fact, the standard car. Mounted on a wide camera, children, most Hardtail or touring bikes.

In addition to these two standards, Dunlop is still used today. Honestly, it is unclear why cameras produce under this type of cycling nipple, thereby supporting it. Has a very strange and precarious structure in the form completely drop down the slide, a system of two retaining rings, one of which holds the valve. Also very sensitive to dirt. Any small stone or sand, below the valve zabivshiysya gum capable to block air.

Bike nipple: types and device. Adapter for bicycle nipple

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Mechanics pin

cycling nipple there are no fundamental differences between the devices. They represent a metal tube containing a conventional valve (slide valve) which opens under the pressure of air entering from the outside and closes when the air pressure on it from the inside of the wheel. The higher the pressure in the wheel, the valve is closed tightly. The slide has a different shape and can not be fundamentally different even from the nipples of the same standard. Bicycle Presta nipples have a thickness of 6 mm, while the Schrader Dunlop and 8 mm. This means that FV can be easily installed in a conventional rim, the rim by any standard Presta can be converted under the nipple car in a matter of minutes using a drill.

Bike nipple: types and device. Adapter for bicycle nipple

Nipples may be of different lengths: from 33 to 80 mm. This variation is related to the size of a large variety of rims, and their height, especially in highway vilsetov. AV nipple on the external thread can be applied only for the cap or the full length of the tube until the chamber. The latter type is more popular, t. K. Can be firmly fixed to the rim of a special nut, which prevents it from warping even when driving at a low pressure. Because of its fragility, Presta bicycle nipples are always equipped with a nut.

They produce nipples made of brass, but there are also models of steel at all, really, cheap cameras. it is not recommended to buy them.

The standards are not terrible, if there is an adapter

Anyone is able to pump to pump any bicycle wheel even without tips, but it is in theory. In practice, it will be much more difficult to build an adapter from the tube from the juice and the wire, rather than buy a normal adapter. Currently, the most affordable option is to Presta adapter with AV nipple. It is a certain similarity fitting and has only under FV thread adhered with a rubber sealing ring. Such an adapter for bicycle nipple can be screwed on the old and Presta Dunlop. This means that, with a normal car pump or compressor, you will be able to pump absolutely any wheel.

In bicycle shops can be found pumps are equipped with a universal nozzle for Presta / Schrader. With such a device, you can completely forget about the differences between the standards.

Bike nipple: types and device. Adapter for bicycle nipple

Types of cameras and tire

In terms of functionality, bicycle tire is not much different from a car. Its main purpose - to contain and protect the camera, as well as to provide traction. In all bicycles tires and cameras are installed various standards.

The camera should be selected under the tire and rim at the latest. Tires come in various sizes and thicknesses from 12 "to children's bicycles, and 29" on Niner. For adults and teenagers Bicycles have the following meanings:

  • 24 "- teenage bicycles;
  • 26 "- Hardtail for adults and children;
  • 5 "- mountain bikes for Enduro, Trail, daunhala;
  • 28 "- racing bicycles;
  • 29 "- Niner, but can be seen and mountain biking to extreme disciplines.

The diameter of the chamber always corresponds to the same parameters of the tire. Also applied to different tire tread which gives a manufacturer only in appearance in many cases.

On a bicycle tire can be set in different sizes. Practice shows that such a system is only good for a specific task and is not well suited for everyday driving.

Tubeless tires

Beyond the usual chambers, professional bicycle wheels commonly found tubeless tires, both cars. This gives an advantage in the weight of the wheels, as well as reduces the chance of breaking of the tire, or more precisely, the tire is punctured in the same way as before, but it immediately repaired by a sealant poured inside. The only disadvantage of such systems - the price.

Inflate tubeless bicycle tire as easily as usual. pin design looks no different from the usual Presto, and can be inflated by means of the cheapest nozzle. Within such a nipple ends immediately behind the inner wall of the rim and looks more like a handshower for air, rather than as part of the wheel. External differences from the standard tires beskamerku except that you can only focus on the rubber gasket under the retainer pin.

Bike nipple: types and device. Adapter for bicycle nipple

Homemade beskamerki

In theory, with proper sealing in beskamerku can turn any tire mid-range, and better with Kevlar cord. Insulate the rim to get several layers of reinforced adhesive tape or, at worst, tape. Bike nipple can be cut out unnecessary camera. It is important to have a clamping nut, because under it will need to put the rubber pad. If the rim is not a pity, you can fill in the hole of the pin on the rim of the quality construction sealants on both sides. After that, we put on the tire, fill it in about 100-150 ml of liquid sealant and cycling can attempt to pump up.

Practice shows that such self-made system, sooner or later will still begin to pass air or tire rips on hard tracks, so consider carefully whether you are willing to take that risk for the sake of economy.