CAMPAGNOLO 11s VITTORIA compound mortar

CAMPAGNOLO 11s VITTORIA
compound mortar
has 2 types:
VA5R: 3 fish/ 92gram
V2: no fish/ 58gram

In the context of bicycles, a hub is the central part of a wheel, where the axle is attached. It plays an important role in helping the wheel rotate smoothly and stably, and connecting the wheel to other parts such as the cassette (rear wheel) and the braking system.
Simply put, the hub is the "heart" of a bicycle wheel, helping the wheel operate efficiently and smoothly.