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Review on 🚲 11-Speed Rear Derailleur: SRAM X01 Type 2.1 by Sean Copeland

Revainrating 4 out of 5

Do not upgrade if you already have a GX. .

Do not upgrade if you already have a GX. All you get by switching to an XO1 derailleur is a bit less weight due to the carbon fiber outer arm and some bike bling.

Pros
  • Sealed cartridge chambers
Cons
  • Slightly cracked