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Old 11-15-24 | 03:06 PM
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Steve_sr
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Joined: Jul 2021
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Installing & Adjusting GRX FD-RX810?

Hello,

I have a relatively new gravel bike with this FD. I thought that I had it adjusted correctly. However, this is a 4-position lever and the cable was slack in the L-trim position which didn't seem right.

Then I tried to follow the instructions in the Dealer Manual for installing the cable and everything went to hell in a hand basket. Page 16 #1 tells you to put the lever in what I believe is the lowest (L-trim) position.

Next they tell you to use the L limit screw to set the outside of the cage even with the outside of the big ring. So so the lever is set to L--trim yet they want the cable tightened with the cage fixed most of the way to the big ring? This doesn't seem right. The only thing that makes any sense is the adjustment barrel tab in contact with the input link.

Missing details:
1. The cable attachment pantograph moves up and down. Which position should it be in when tightening the cable?
2. Should the cable adjustment screw be in / out / or somewhere in the middle?

Can any of you help me figure this out or recommend a better way to do this. I think that the Shimano document lost a LOT in the translation from Japanese to English!

Thanks,
Steve



Attached Files
File Type: pdf
DM-GAFD001-01-ENG.pdf (587.8 KB, 8 views)
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