Ultegra RX808/805 rear derailleur
#26
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I installed my RD-RX800 over the weekend on my 2017 Jamis Renegade Expert, upgrading from the RD-5800-GS. It feels really, really good. The clutch works well at stock settings. I haven't messed with adjustments yet. The clutch seems to add zero resistance to the drivetrain, or if it does it's imperceptible. I don't see how the clutch would add resistance to the drivetrain to be honest. Where I notice a difference is in shifting speed when shifting up, and a touch more effort at the lever when shifting down. It's not a huge deal. I'd just leave the clutch engaged all the time if it wasn't for the fact I'd be wearing away at the friction material needlessly. I'm not sure how long the material is supposed to last.
#27
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Finally, an actual explanation! Not just "it adds drag because this guy and/or article said it".
I never would have thought that the spring is that much stronger. When I turn off the clutch on my Shimano system the cage flaps around so easily like a normal RD.
I never would have thought that the spring is that much stronger. When I turn off the clutch on my Shimano system the cage flaps around so easily like a normal RD.
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