Hi everybody

Just brought a used 2013 Caad10 105 last week and I'm loving it so far. Its my first serious road bike.

Anyways got a question for all the caad owners.

i was just cleaning my bike this evening and I noticed a scratch pattern on my right chainstay that looks kinda like oval/cylinder. It couldnt have been caused by a fall or leaning against something because its too perfect in shape. I was wondering whether Cannondale puts it on (for whatever reason that I cannot figure out) or somehow the previous owner caused it.





So I tried googling this and I came across a picture in a review of a 2014 caad10 and it kinda looks like something similar



If anyone can help me out that'll be great because this thing is driving me crazy