The terms “spinning,” “bodybiking,” “RPM,” and “indoor cycling” depend on the type of bike, instructor, and training program you use.
Since 1992, “Spinning” has been a registered trademark and refers specifically to the products, bikes, and programs offered by the trademark holder. To use the term “spinning,” you must be certified by them, use their bikes, and obtain their permission.
Other companies have their own trademarks for indoor cycling activities. For example, Les Mills owns the trademark “RPM,” which stands for “Raw Power in Motion.” They define RPM as an indoor cycling workout synchronized to powerful music.
Ultimately, the terminology you use—whether “spinning,” “bodybiking,” “RPM,” or “indoor cycling”—depends on the brand and program. However, despite the different names, the fundamental activity remains the same.