Allows for 180mm rotors on 160mm post mounts

Chainline on a Standard M8000 or M7000 crankset is 48mm and 50mm on a boost version

How handy is that

It keeps your drivetrain nice and clean and doesn't attract as much grit and grime as most wet lubes can

These work great with the 104 BCD Elliptical 32t ring

Garbaruk Rear Derailleur Cage - Black - Shimano RD-M7000-M8000-M9000 Do Not Ship Internationally Allows for 180mm rotors onIncrease the capacity of your SRAM or Shimano 11 speed derailleur up to 50T with these precision machined derailleur cages from Garbaruk. This derailleur mod will position your jockey wheels in the optimum position to provide maximum chain wrap in the smaller cogs, whilst also ensuring sufficient clearance to ensure smooth shifting to and from the largest cogs. Recommended Installation Options: SRAM derailleur: (10 46 and 10 48T cassette) Garbaruk RD