No one is going to be able to give you a definitive answer just looking at a picture. But if it were my bike I would not ride that, its just not worth the possible injury if it snaps. If it were my bike, and not under warranty, I would just get a carbon repair kit and fix it myself. I don't think its bad enough that you need a professional repair.

 

I was thinking the same thing, until I watched this:

Guessing the repair kits might be a little more straightforward. Anyone try one or have a rec?

Given how close cranks are nowadays to the frame, I'm guessing this type of damage will become fairly common.

 

The second photo makes it look pretty deep. I would be careful.

 

That is a nice deep scratch!! Do you need to worry about it, probably not. The carbon is really thick there and it is unlikely to be a issue at any point.

 

I wouldn't worry about it.
I've done far worse looking things to carbon frames and ridden with the "damage" for years.
Carbon isn't as fragile as many riders think.

 

I would put a sticker over it and send it.

 

That's into the structural layers. My recommendation, fix it.

 

Hard to be confident from a picture but I don't think I'd worry about it. If it were my bike I'd be sad about the scratch but wouldn't have any serious concerns about its strength and would happily just ride it. If you really want to do something to it you could dab a bit of epoxy resin in there. I think a repair kit is probably overkill.

 

Epoxy and touch-up paint was my first thought too. Kind of a good middle ground here, possibly.

 

pretty gnarly scratch, but I doubt your chainstay is going to snap because of it.

Unless you have some experience working with composites or are willing to potentially waste a lot of time and money on a DIY repair that might make it worse, I'd suggest paying someone reputable to fix it. Just dabbing epoxy on it may help cosmetically but does nothing for the structure.

working w/carbon fiber isn't terribly hard, but there is a lot to know and some real skill involved in doing it right.

 

This needs a fix for sure. I would not ride it. Especially given the location on the bike that gets a lot of stress.

These kinds of damages always makes we think to go back to an aluminium frame again.

 

Depending how gnarly your trails are.....

I'd probably ride it.... Maybe.... In the snow... Slowly....

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Ride it often, ride it hard and don't worry about it when you're riding. BUT, regularly watch the ends of the gouge for a crack to start migrating. Keep these original photos for reference. If you see anything that looks like a crack creeping away from this gouge have it professionally repaired. This kind of repair is easy, cheap and there are carbon frame repair shops in every city in the USA. If you really want to keep the price down, don't try to match the fancy paint, just spritz it with flat black from a rattle can and put a Clash sticker on it.