SunRace CSU980-9AY 9-Speed Cassette – 11-42T

Product Description:
The SunRace CSU980‑9AY is a wide‑range 9‑speed cassette built for mountain bikes and E‑MTBs needing reliable gearing and smooth shifting. With a broad 11–42T range and hardened steel construction, it delivers excellent climbing capability, durability, and consistent performance under load.

These cassettes are OEM, brand new, never installed, and supplied in OE packaging (not retail packaging). Compatible with standard Shimano/SRAM HG freehub bodies and 9‑speed chains. The ED‑coated black finish adds corrosion resistance and a clean, modern look.

Key Features:
• Brand: SunRace
• Model: CSU980‑9AY
• Speeds: 9‑speed
• Range: 11–42T
• Cog sizes: 11‑13‑15‑18‑21‑24‑28‑34‑42T
• Freehub compatibility: Shimano/SRAM HG
• Material: Hardened steel
• Color: ED Black
• Weight: 504 g
• Condition: New OEM, never installed
• Includes: Cassette / Freewheel
• E‑Bike compatible

Fitment Details:
• Compatible with mountain bikes, E‑MTBs, and Shimano/SRAM/microSHIFT/SunRace 9‑speed systems
• Fits standard Shimano/SRAM HG freehub bodies
• Ideal for wide‑range 1x9 or 2x9 setups
• Ramped cogs improve shifting under load
• Continuously molded construction maintains straightness and long‑term durability
• Hardened steel cogs withstand high‑torque E‑MTB usage