Chain jammed inside front chainring and downtube ...

[Rural Rider]

Cheers all.

Got back from a ride today and noticed when putting the bike away that the chain has jumped off the small cog of the front chainring and is good and jammed against the downtube. I don't want to do damage to the Carbon frame or paint if I can help it (2017 Trek Emonda SL6) ... it won't budge with my fingers. The chain is sitting midway on the rear cassette - I'd appreciate some good advice on getting it clear and re-seated.

I'm assumung I'll just need to remove/adjust the chainring and crank arms yes?

Thanks gents!

[jackthelad]

Sram is one 8 mm allen key easy job ,
undo retighten once chain is loose
shimano, do you have the tension cap tool?
undo the bolts , release the black wafer thing in the cranks, release the tension in cap,
reverse to retighten , me i just do one good yank, it be free
look at your shifting when you have it out

[trailgumby]

I'd recommend a K-Edge chain keeper. Bolts on over the top of your FD using a longer bolt. Due to my hybrid 10/11spd front setup, I used to drop the chain once every 2-3 rides. Not anymore.

https://www.google.com.au/search?rlz=1C ... 8bEBS4s6P0

[jackthelad]

Go Single ring.... or chain keeper, whichever works best for u

[headasunder]

+1 to the chain keeper it removes fear factor, very ocassionly when I down shift up front there is a clatter as the keeper does it job certainly beats the alternative

[Kronos]

A back pedal should usually unjam something like this.

[Baalzamon]

BV great ride, had this happen very very badly to a rider and had to take the cranks off to fix it. Paint was damaged and a bit of a gouge on the carbon.

[Rural Rider]

Thanks for the tips gents!

I haven't the tools to fix this at home myself right now so will take it to the local Mech to get sorted and will definitely be installing a chain catcher as recommended! I can see there is already a little paint removed where the chain is jammed but hopefully no gouging to the Carbon Frame ... I don't want this happening again - and while usually OCD about damage or blemishes on Bikes, it's down where you can;t see a thing. Local Bike dealer is the Dealer I bought from so perhaps they have a little touch up paint on hand as well.

Cheers RR.

[RobertL]

If you can't find the right touch up paint, try nail polish. It comes in a million different colours and is great for touching up those sort of chips.

[Rural Rider]

Good tip on the fingernail polish ... tough for me though I'm not sure it will be easy to find such an odd shade of flat metalic grey/black DNISTER BLACK for my Trek. Worst come to worst I could get a mix from a spray shop to a price.

[jackthelad]

Just use clear nail polish, its just to seal the frame, not get fancy