What level is Shimano Sora?

[DiArianna]

From a positioning perspective, Shimano 105 sits between racing and sport, serving as the entry-level for competition. Below is a relevant introduction: Sport and leisure: Sora is positioned between sport and leisure, making it the lowest level above the civilian grade. There are significant differences between the two in terms of weight, shifting smoothness, and shifting accuracy. Speed options: 105 offers up to 10 speeds, while Sora offers up to 9 speeds. Crankset: 105 features a hollow crank and a one-piece bottom bracket, enhancing rigidity while being lightweight. Sora uses a standard hollowed-out crank, which is relatively heavier. The newer Sora models also feature a one-piece bottom bracket, while older models use square taper and splined interfaces. Rear derailleur: 105 uses bearing pulleys and an aluminum cage. Sora uses standard pulleys and a steel cage. The front derailleur is similar.