Thanks mate. To prevent speculation the scratches along the stay were from a flight back in October travelling interstate for a sportive.Bigger Gear wrote: ↑Sun Apr 15, 2018 12:24 amNo worries on hijacking the thread nichob11.
I don't understand how hitting any small debris could cause this failure. Since you say you were unsure what caused the puncture, the debris you hit must not have been very significant in terms of size. Unless something was physically ejected and momentarily jammed between the the cassette and the stay then I don't see how it could have caused this fracture. If it was from impact, again you've probably hit bigger potholes or cracks than whatever debris caused you mystery puncture. Were the scratches just in front of the crack there already (from your chain?) or did they happen at the same time. The scratches might indicate something momentarily lodging in there and putting outward pressure on the stay??
I hope Colnago takes care of you.
you're right, i think the debris had very little to do or if anything had a 1% part in the final failure. I'm still wondering if the puncture was actually a consequence or the frame failing and the tire connecting with the frame when it cracked or from the debris itself.
Either way the debris was not significant enough to be the sole contributor to this failure, i have hit way bigger holes, road cracks and rougher surfaces over the past 4 years to know that this along couldn't result in this type of crack.
I'm really still scratching my head about it. I've never crack a frame in the past whether it be road, mob or CX and i've raced downhill at national level here in Australia. I consider myself a fairly smooth rider and road conscious when it comes to looking for smoother lines for my comfort and the longevity of my gear.
Hope that clarifies my case even further. Either way i've been super happy with my C60 until now, so i can't really complain.
I hope Colnago does some homework on this case and we can come to some arrangement...