Here's an update. It's been sometime, and quite a few things have happened since then.
In random order:
1. I've never repaired the cracked Cervelo R3, I kept it in a box the entire time
2. I bought a Cervelo S2 and use it regularly in races
3. Today, I decided to sand a big the 'cracked' area to see what's underneath. I should have done this straight away actually.
4. Surprise surprise, the crack was really superficial. I removed the clear coat, the paint layer, and what seems 1 or 2 layers of carbon fibers. The cracks stopped/disappeared.5. Please see attached pictures. The area where the crack was, is now smooth. The other irregularities that can be seen in the picture are the layers of carbon that I haven't sanded.
6. I did the coin test. No audible difference.
7. Tried to squeeze tube as much as I can. Doesn't move.http://img204.imageshack.us/slideshow/w ... c1666l.jpg
" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
I inspected the frame and there is no other damage apart from the right 'boss' where the cables go on the downtube. This is made of aluminium and took the impact from the from the front calliper (on the same side of the 'crack').
Question for the carbon experts. Is this bike safe to ride?
The initial pictures suggest some pretty significant carbon fiber damage......You had the money to buy a replacement and it appears that you don't need this frame to ride anytime soon. And now you've sanded through 2 layers of carbon hoping that the "badness' is possibly gone......
I'd say you should send it to one of the recommended repair experts for evaluation and don't rely on various opinions over the internet (no offense to those who have offered their thoughts).
Just try'n to help.