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Old 07-28-24 | 08:08 PM
  #5  
Barry2
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Joined: Sep 2019
Posts: 2,585
Likes: 1,617
From: SF Bay Area

Bikes: 1981 Holdsworth Special, 1993 C-dale MT3000 & 1996 F700CAD3, 2018 & 2019 Cervelo R3’s & 2022 R5, JustGo Runt, Ridley Oval, Kickr Bike 8-)

Road rear derailleurs (RD's) don't offer the clutch function.
My GRX RD does. It's a lever you physically move to engage the clutch.
It helps stop the chain slap over bumpy ground.

Barry
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