u/Bazivi2

I’m looking for some advice from other Canyon owners.

I have a Grail CF 7 that’s less than 2 months old and has only around 300 km on it. During a ride, the chain fell off. I’m not very handy with bike repairs, and for some reason I couldn’t get it back on myself.

While trying to figure out what had happened, I noticed some surprisingly deep scratches around the drivetrain area (see attached photos). Since I couldn’t get the chain back on, I took the bike to a mechanic. He fixed the issue and also replaced the chain, which surprised me considering the bike had only done 300 km.

What confuses me is that I previously owned a Triban RC520 and rode nearly 1,500 km without replacing the chain once(Microshift). The chain came off a few times on that bike too, but I could always put it back on myself, and any marks were barely visible.

Do these scratches look normal from a single chain drop on a carbon Grail(They are deep), or is this excessive? And does it make sense to contact Canyon about it, considering the bike is almost new?

I’d appreciate any opinions or similar experiences.

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Chain drop after 300 km on my Grail CF 7, now deep scratches – would you contact Canyon?

Do I need to cut a cricket with even smaller peaces or these are fine?