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Front derailleur adapter for smaller chainrings

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Front derailleur adapter for smaller chainrings

Old 07-09-20, 04:05 PM
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yarbrough462 
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Front derailleur adapter for smaller chainrings

I have a 2021 Trek Domane that I ride on gravel and road so I just got a new crankset with 46/36 chainrings. On this bike, I cannot get the Ultegra deraileur low enough to be in the 2-3mm range because the braze on slot doesn't go low enough. Does anyone make an adaptor to lower the front deraileur 5mm or so? It shifts and rides fine as is but I want to get it within spec...
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Old 07-09-20, 04:23 PM
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You can use a braze on adapter if you want to go 5mm:
https://www.amazon.com/SHIMANO-Dura-...2N499ZPSQKGJQS

But try setting it up slightly out of the 2-3mm spec. You might not even notice the difference.
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Old 07-09-20, 05:32 PM
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yarbrough462 
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Originally Posted by Elvo View Post
You can use a braze on adapter if you want to go 5mm:
https://www.amazon.com/SHIMANO-Dura-...2N499ZPSQKGJQS

But try setting it up slightly out of the 2-3mm spec. You might not even notice the difference.
I don't think that will help me?
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Old 07-10-20, 11:39 AM
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Either remove the fitting or file the slot 5 mm lower are your two options.
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Old 07-10-20, 07:00 PM
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noodle soup
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Originally Posted by yarbrough462 View Post
I have a 2021 Trek Domane that I ride on gravel and road so I just got a new crankset with 46/36 chainrings. On this bike, I cannot get the Ultegra deraileur low enough to be in the 2-3mm range because the braze on slot doesn't go low enough. Does anyone make an adaptor to lower the front deraileur 5mm or so? It shifts and rides fine as is but I want to get it within spec...
I'd contact Trek Customer Care, and see if a different mount is available.
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Old 07-10-20, 10:29 PM
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https://wickwerks.com/products/fit-link-adapter/
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Old 07-13-20, 08:35 AM
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velopig
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The Fit-Link lowers the FD mount 8.8mm to 15.9mm lower. Only 5mm is required.
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Old 07-13-20, 08:41 AM
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Originally Posted by noodle soup View Post
I'd contact Trek Customer Care, and see if a different mount is available.

The fitting is part of the frame.
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Old 07-13-20, 10:39 AM
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I ordered the Fit-link and will see if I can get the adjustment right with it...Thanks all!
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Old 07-13-20, 11:39 AM
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On my bike, with 48t ring, the FD cage hitting the chainstay is what prevents ideal clearance above the chainring.
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Old 07-15-20, 05:54 PM
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I got the Fit Link installed and it works perfectly. Thanks all!
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