Derailleur hitting cable guide

The picture describes this issue better than I can. What is happening is that in the highest gear (i.e., in the smallest cog) the derailleur folds up as there is more chain to take up. However the lower part of the derailleur is running into the plastic cable guide. Its a little tough to tell in the image but is almost snaps over the plastic part, definitely causing some damage. Any ideas on how to stop this from happening?

  • 1
    Is the chain length correct?
    – Klaster_1
    Aug 16 '21 at 15:39
  • The chain length has not been changed since the bikes been received from the manufacturer
    – Bobbygllh
    Aug 16 '21 at 16:54

SRAM derailleurs do that when the chain is too long or sometimes when it's been sized correctly for chain growth, but looks long with no weight on the bike. Presuming it's a full squish, you can get on and see whether sag is enough to keep it from happening. You could also just go through and confirm the length is right manually. (If it's not a full suspension bike and it can contact the cable guide like that, the chain is too long.)

  • Interesting, I will double check the chain length. As I mentioned above, this is the same chain length as what came from YT (the bike is a YT Jeffsy) but certainly could be wrong
    – Bobbygllh
    Aug 16 '21 at 18:51
  • Chain length is too short if anything. I moved the derailleur up with the low limit screw, in order to get it far enough up that it won't hit the cable guide. it makes a lot of noise (pulling it back so it doesn't make noise results in it hitting the cable guide again
    – Bobbygllh
    Aug 16 '21 at 19:45

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