The SunRace CSRX1 is a lightweight 11-speed road cassette built for smooth, precise shifting. Featuring high-tensile steel sprockets mounted on red anodized alloy spiders, it balances strength and weight savings with a sleek metallic silver finish. Designed for Shimano 11-speed road freehubs, it’s ideal for city, race, and endurance builds where performance and reliability matter.
Key Features:
Super Fluid Drive technology for crisp, consistent shifts
Lightweight alloy spiders and lockring reduce rotational mass
Durable steel sprockets for long-lasting performance

Technical Specifications:

Material: Hi-tensile steel sprockets, red alloy spiders  and lockring
Speeds: 11-speed
Freehub compatibility: Shimano HG
Weight: 278g