Sram upgrade with FRM 40/27 - which xx front derailleur?- Mtbr.com
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  1. #1
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    Sram upgrade with FRM 40/27 - which xx front derailleur?

    Can i use the xx front derailleur for 39/26 chainrings also with frm 40/27 chainrings? Or do i need the FD for 42/28? Thank you.

  2. #2
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    You need the FD for 42/28. I can't remember where I read it though. I'll have a look and see where I found it but I'm looking to do a similar thing.

  3. #3
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    does your frame use the direct mount front derailleur or the normal clamp on front derailleur? if clamp on, there is no specific 26/39, 28/42. there are only different ones in the direct mount derailleurs to get them at the right height for the chainrings.

  4. #4
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    You`re right, it`s S3 direct mount.

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