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Cutaway diagram of a rim and tire from an ATV Cross section of a bicycle rim A wooden bicycle rim with tubular tire. The rim is the "outer edge of a wheel, holding the tire". [1] It makes up the outer circular design of the wheel on which the inside edge of the tire is mounted on vehicles such as automobiles. [2]
Wheels with Asanti 28 in (710 mm) rims on a police Hummer H2 car. The wheel size is the size designation of a wheel given by its diameter, width, and offset. The diameter of the wheel is the diameter of the cylindrical surface on which the tire bead rides. The width is the inside distance between the bead seat faces.
The European Tyre and Rim Technical Organisation (ETRTO) exists to specify and harmonise sizes of rims and their associated pneumatic tyres across the European Union. ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles.
The rim type codes SS or HB precede the rim designation, whereas code C is appended to the nominal width. Examples: SS 400×20, HB 422×25, 620×13C. The nominal width of a rim is the inner width between the straight sides or beads as one can easily measure it with a caliper (see the standard for drawings and exact measurement procedures).
Rebated-rim cartridges are known to be used on firearms using advanced primer ignition (API blowback) for its operation, notably autocannons such as the 20 mm Becker/Oerlikon series. [1] API blowback firearms have straight-sided chamber walls as possible (and sometimes slightly bottlenecked) to contain the cartridge and allow a deeper chambering.
In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. [1] Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country.
As Formula One wheel rim diameter size will switch from 13 to 18 in (330 to 457 mm), the tyre diameter of 2022-spec Pirelli Formula One tyres will also be altered, from 670 to 720 mm (26.4 to 28.3 in), while the tread width of 2022-spec Pirelli Formula One tyres are expected to be unchanged.
Construction of wire-spoked wheels is generally termed as wheelbuilding, so wheel construction refers to construction of non-wire wheels, e.g. wheels of cars and other heavier vehicles. Wheels are constructed in a wide variety of designs using different materials, but in the early 21st century, aluminum and steel are most often used, with steel ...