See also:

Tachometer
The red band in the tachometer indicates the engine's overrevving range. ! Do not drive in the overrevving range, as this could damage the engine. The fuel supply is interrupted to protect the ...

Aspect ratio
Relationship between tire height and tire width in percent. ...

Bar
Metric unit for tire pressure. There are 14.5038 pounds per square inch (psi) to 1 bar; there are 100 kilopascals (kPa) to 1 bar. ...