välisratas

Välisratas is an Estonian term that translates to "outer wheel" or "external wheel." In its most common usage, it refers to a bicycle wheel that is not the one being directly driven by the pedals. For example, on a bicycle with a rear derailleur, the outer wheel typically refers to the front wheel, which is used for steering. If the bicycle has an internal gear hub, both wheels are external in relation to the gearing mechanism. The term can also be used in a broader sense to describe any wheel that is not the primary or driving wheel in a mechanical system. This might include wheels on trailers, or idler wheels in conveyor systems. However, in everyday language, particularly in a cycling context, "välisratas" usually distinguishes the non-driven wheel from the driven one. Understanding which wheel is the "välisratas" can be important for mechanics when discussing maintenance or repairs, as different wheels may have different components and functions.