SunRace CSMX9X 11-Speed Cassette 10–42T XD

Product Description:
The SunRace CSMX9X is a high‑performance 11‑speed cassette designed for gravel and MTB riders who want wide‑range gearing and smooth shifting on SRAM XD freehub bodies. Built with a lightweight 7075‑aluminum 42T large cog and hardened‑steel smaller cogs, this cassette balances durability, stiffness, and weight.

Constructed on two aluminum spiders and supplied with an aluminum lockring and spacers, it delivers crisp, reliable shifting across a broad 10–42T range. These units are OEM, brand new, never installed, and come in full retail packaging.

Key Features:
• Brand: SunRace
• Model: CSMX9X
• Speeds: 11‑speed
• Gear range: 10–42T
• Gear progression: 10‑12‑14‑16‑18‑21‑24‑28‑32‑38‑42T
• Freehub compatibility: SRAM XD driver
• Materials: 7075 aluminum largest cog, hardened‑steel smaller cogs, aluminum spiders/lockring/spacers
• Color: Black
• Weight: 453 g
• Condition: New OEM, never installed
• Includes: Cassette, lockring, spacers

Fitment Details:
• Fits SRAM XD freehub bodies
• Ideal for gravel bikes, mountain bikes, and 1×11 wide‑range drivetrains
• Compatible with SRAM‑type 11‑speed chains and derailleurs
• Buyer should verify derailleur max‑cog capacity