Key Features • Full steel hollow‑cut construction • Nickel‑plated surface finish for smooth, fine‑finished teeth • Alloy spider support ring • 409% total gear range Specifications • Range: 11‑45T • Cog sequence: 11‑12‑13‑15‑17‑19‑21‑23‑25‑28‑33‑39‑45T • Type: Cassette‑style fit • Weight: 450g • Compatible chains: 12‑speed /13‑speed