Noticed my brake was rubbing and went to move the brake assembly, but it was tight. Noticed the whole fork move and saw a straight, perfectly round line around the fork. Took the wheel off and the tip fell right off in my hand. Now what? Will bring it by a trek store in the morning. 2005 madone, so not sure what they will say. Anyone ever see this before?

Bummer
Some good epoxy, and a nut & bolt for mechanical interferance should take care of it.

Correcter.

You need to tighten the QR more ...

Hahahaha I'm sorry that is SO not funny, because I would be PISSED if that happened. That is horrible. Hopefully Trek will take care of you and replace the frame, at which point you can sell it and get a better bike.

Freaking Trek...

You think new frame? Or just new fork? I had a defective Trek fork years ago back in the glued and screwed aluminum tube days. Actually I did get a new frame. I don't think they have the ability to match new forks with old frames, so it is easier to replace the whole thing. No choice of color though. They sent me a crappy robin's egg blue color frame with pink decals that they couldn't sell. A few years later I finally sent it back to them for repainting to candy apple red when I discovered some corrosion bubbles in the paint around the bottom bracket. Long gone now. Time heals all Trek problems.

Lol that would suck to not have the ability to chose the color! And if I got a Robin egg blue with pink lettering I would freak!

I'd be surprised if they didn't at least get you another fork or replace the frame. Glad you caught the issue before it caught you.

That obviously could have been a potential disaster.

Yeah, thank goodness for those lawyer tabs. <-----------------------------------sarcasm

That does not inspire confidence

A replacement fork is in order, unless Trek weasels out of it by saying it is neglect/abuse.

So, after doing some research what I have figured out is that the dropout is aluminum and it is bonded somehow to the carbon fork. The other side is also showing "wear", nothing loose, but a very faint line where the two pieces meet. Trek said to bring to dealer with receipt, which I don't have. Hopefully will not be to big a problem and they will work with me. No abuse, no crashes, do not over tighten when putting the wheel on. I am crossing my fingers...

There is no abuse that would cause a part to become unbounded. Cracks, scratches, dents, maybe, but unbonding like that is a manufacturing defect.

True...it's never ever the rider's fault. No potholes, didn't ever cram down the QR, etc...

And to the OP, I have no clue why it broke, I just love posts where people think nothing should ever ever break.

Another "41" moment.

Kind of like when his Ti skewers broke.

Did you buy the bike used?

If not, is this the shop from which you bought the bike?

If not and you bought it from a shop , call the shop and get a purchase record. They can email it to you no problem.

Warranty extends to the original owner.

^ True.

Based on history, Trek is likely not going to warrant that if you're not the original purchaser. They might just to get the fork off the street, given the safety impication.

You could expoxy it, and likely be fine, or you could send it to someone like Calfee.

Personally, i'd just buy a new fork for the piece of mind, if they don't replace it under warranty.

Calfee doesn't work on forks or handlebars. Kind of a bummer.

https://www.youtube.com/watch?v=8-QNAwUdHUQ

Pipe down dude. I was being sarcastic about the coincidence of it happening to a trek since most people around here think trek is such a sub par company. I didn't imply anything that equipment should last forever.

Incorrect, you imply everything and anything that any 41 reader can lift out of any post. LOL!

E.g. From your post, I can see that you are a plumber and that you believe Trek is an evil corporation and that you are a snazzy dresser!

Hahaha you are very wise

I am not the original owner. Brought it to the shop and they said I was probably our of luck since I am not original owner. They are going to try to submit a claim anyway, or at least contact their rep and see what if anything can be done. I am tempted to try to "glue" it myself, but not sure that is worth the risk and will likely buy a new one.

Glue it?
You live in Denver? Like in the mountains?
That's not going to be on your mind when you are bombing it downhill?

Buy a new one.