Dent in aluminum chainstay

[LegendRider]

A friend of mine crashed his Cannondale Six13 in a race last weekend. The damage consists of a small dent in the chainstay. Although I don't have a picture, I would describe it as noticeable but not severe. The aluminum is not "crinkled" it's more like a "wave" if that makes sense.

As it turns out, the local Cannondale rep was at the LBS when he brought the bike by. The rep said the frame is ruined and told him the chainstay could buckle under hard efforts. I suppose this is plausible, but does anyone have additional insights into the likelihood of this scenario?

I see plenty of people riding aluminum bikes with small dents in the top tube. But, presumably it doesn't see the stress a chainstay does. Thoughts???

[A.L.Breguet]

Cannondale offers a good deal on replacement of damaged frames.
I'd tell your bud to ckeck it out.
A second opinion from another shop you trust that is a Cannondale dealer is also a good idea.

[Fixed]

why take a chance
you have to take the good with the bad with alum
imho
cheers

[David Kirk]

Where is the dent located?

Dave

[LegendRider]

Originally Posted by David Kirk

Where is the dent located?

Dave

I haven't seen it, but my friend tells me it's in the middle of the chainstay - not near the drop-outs or bottom bracket.

I'll try to post a picture tomorrow.

[David Kirk]

Originally Posted by LegendRider

I haven't seen it, but my friend tells me it's in the middle of the chainstay - not near the drop-outs or bottom bracket.

I'll try to post a picture tomorrow.

Don't hold me to this but I'll bet considering the location and the small size of the dent that one could ride that thing forever without an issue.

dave

[Peter P.]

I have to agree with Dave. From your description, it sounds like the end of the crankarm flexed during the crash and dented the chainstay mid-span.

I'd say virtually all frame tubes see no stresses mid-span and therefore wouldn't impact frame longevity. It would be cause for concern if the dent were close to the tube junctions, as well as the shape of the dent.

[tuscanyswe]

Reviving this old thread since same questions. What do u guys think about something like this one? Safe to ride or time for the bin? Pity if so as its a Peg.

[Dead Man]

Originally Posted by tuscanyswe

Reviving this old thread since same questions. What do u guys think about something like this one? Safe to ride or time for the bin? Pity if so as its a Peg.

ill be happy to test ride it till failure if its 53-54cm 😛

[tuscanyswe]

Originally Posted by Dead Man

ill be happy to test ride it till failure if its 53-54cm 😛

Hah it is!

[gbcoupe]

Wonder what Peg wind chimes sound like?

[tuscanyswe]

Originally Posted by gbcoupe

Wonder what Peg wind chimes sound like?

beautiful n expensive?

[gbcoupe]

Hope chimes aren't the answer, but that does not look good. Maybe a sleeve could be epoxied over the damage and some length past?

Some of the frame guys here will surely chime in. Oh that was bad.

Did the wheel hook something and beat the stay?

Jokes aside, sorry about your bad luck. Hopefully can be fixed.

[tuscanyswe]

Originally Posted by gbcoupe

Hope chimes aren't the answer, but that does not look good. Maybe a sleeve could be epoxied over the damage and some length past?

Some of the frame guys here will surely chime in. Oh that was bad.

Did the wheel hook something and beat the stay?

Jokes aside, sorry about your bad luck. Hopefully can be fixed.

Frame is to small for me just inquiring about the severity of the dent and wether one can ride or should not. but thx.

[tuscanyswe]

Bump for those with some experience