SRAM’s unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel. The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x MTB to provide the fastest, quietest 1x shifting available.
This is an excellent rear derailleur for a CX or Gravel application. With a clutch/lock the chain will not bounce around on your chain stays. It is not the lightest one out there, but nor is it the heaviest. I am a SRAM fan over Shimano, and the reliability, ease of set up, and flawless function make it my choice for my gravel race bike.