Jixr

Last friday I got a brand new 2016 Fuji Cross 1.5

I rode it on a 15 mile long ride, and another 20 mile ride during the weekend

yesterday, I was out riding and i hear a loud ping and looked to find my derailleur basically exploded.

Its a shimano 105, and, from what I can best guess, the jockey wheel broke off, the chain wrapped around it, and snapped the hanger then it all wrapped around my frame and scratched it all up down to the bare metal.

I've never had this happen, and until the shop I bought it from opens to call them I'm super worried that they may not warranty it.

Its a completely brand new bike, that now is broken and has a frame with paint chips all over the rear. It was never dropped, crashed, or abused. Always stored in a bike stand. It is exactly as it was when I left the shop.

What do you think most shops would do in this situation? I really just want an entire new bike but am doubting they would swap the frame too.

himespau 

Which gear were you in when it happened? To me looks kind of like what other people have posted when they were in the large cog on the rear and the limit screw wasn't set right and the derailleur went into the spokes. Any chance that's what happened?

Jixr

i was in the largest rear cog. I don't think it hit the spokes, I didn't see any nicks in the paint on the spokes and the bike didn't come to a sudden stop when it broke.

WizardOfBoz

As a lad working in the bike shop, I set up a Simplex derailleur poorly (limit screw not set right) and this is what happened. I think himespau's question is apt, and I suspect that the answer is "yes". An alternate explanation, that the screw holding the guide wheel (at least I think it's the guide wheel and not the idler) worked loose and this allowed the chain to get free, which somehow got wedged in the works and caused the ensuing disaster. Shimano dura ace RDs have a spot of loctite on the threads for this screw, btw.

One other explanation. There appears to be thick mud on the idler wheel. Were you bottom-bracket deep in mud or something? Could some foreign object debris have gotten into the derailler? Where you riding through bushes? Could a twig or rock or a piece of metal have gotten into the RD works?

One last possiblity: The RD hanger got bent at the shop, or coming home from the store, and this allowed the RD to get tangled in the spokes. How did the bike get home? Assembled in a bike carrier, or with the wheels removed, stuffed into the rear of your motor vehicle?

So its a poor setup or a defective derailleur. If you bought from an LBS they should repair or replace everything to your satisfaction. If you bought this mail order, you're on your own.

Shimagnolo

^This.

cyccommute 

The good news is that it's not as bad as it looks. The hanger is meant to break off rather than break the frame. It's a replaceable part and not terribly expensive. The derailer will have to be replaced and likely the chain (it gets twisted and bent).

The okay news is that you are probably right about it being a warranty problem. The bent inner plate on the derailer suggests to me that the derailer hit the spokes as That's a set up problem and is likely due to the shop...as long as you haven't fiddled with the limit screws! If you did succumb to the Siren's song of the limit screws, fess up and pay for the fix. Take it to the shop unless you fiddled with the screws.

The sorta bad news is that the paint damage is what it is. They won't replace the frame for that. Real bikes have scars, learn to live with them.

dabac

It has a replaceable hanger. Hopefully it snapped off as intended before the rest of the dropout got damaged.
There really aren't that many ways to destruct a derailer while JRA. Derailer snagging spoke is definitely the most common. As to EXACTLY why, well, take your pick.
The only other option I can think of is chainsuck causing excessive chain tension.

jefnvk

Being a Fuji, any chance it is from Performance Bike? If so, and you are really insistent on getting a new frame, just return it and buy a new one with the refund.

Other than that, yeah, real bikes are going to get dinged up. The bright side is once the first ding is out of the way, the rest aren't as traumatic

Jixr

unfortunately not, I usually do get my bikes from performance, as if you keep an eye out you can get a good deal.

Got this one from a lbs a few hours away because they had this one for the same price as the lesser equipped 2.0 that performance was selling

Slash5

Yep, derailleur got sucked into the rear wheel.
Have had it happen before with almost exactly same results.

Jixr

Update: Called the shop, they asked me to bring the bike in and that they are pretty sure they would repair it at no cost unless there were signs of error or damage done to me. ( none )

Though they didn't seem like they could do anything about the frame damage. And if thats the case, i'm tempted to just pay for new parts out of pocket to fix it myself. Since it would require 8 hours of total driving and two weekends, one to drop the bike off, and another to come to pick it back up. seems kinda stupid when I can just amazon the parts myself, and be back out riding by this weekend.

himespau 

With the cost of gas, assuming you can find the right derailleur hanger, DIY seems cheaper.

indyfabz

Make sure you know how to adjust everything correctly or you may find yourself back in the same position.


And, BTW, I agree with the others who think you shifted into the spokes. That would not likely cause the bike to come to a stop because the RD asploded. Been there. Done that. With my first Surly LHT. Bent my hanger slightly one winter and neglected to get it straightened. Come spring I had forgotten all about it. Took the bike out for a spin and decided to see what it was like to climb a steep hill in the granny gear. RD went straight into the spokes resulting in an asplosion and mushroom cloud that could be seen for miles. Bike kept moving for a bit until gravity made it stop. Had to skateboard home. Ranger was twisted like a pretzel, but a shop was able to straighten it out.

luddite_68

Man, that sucks. I guess the lesson is to keep the L in the LBS. I have a new bike on order and would be VERY ticked if the LBS let me ride off without having properly tuned and inspected resulting in a catastrophic failure with me on it. You seem to be taking this better than I would, but really what can you do?

jefnvk

Make sure you know nothing else was damaged or knocked out of alignment if you choose the DIY route. Once you fix it, the shop is unlikely to touch it if you later find other issues you didn't notice at first.

Jixr

yeah, the reason why i drove to this shop instead of the several closer ones was that the bike was about $200 cheaper than my LBS had it.
My LBS has a great warranty and return policy, and I thought it would be worth the risk of trying a new shop and a few hours driving to save $200, but now its looking like I would have been better off buying local and with a shop I've bought from before.

fietsbob

The chain hanger broke.... saving thec frame , shifted into the spokes.? new bike? component warranty is a year.

might be a good idea to put the spoke protector back on... swallow the pride. be practical.
you don't have a support car following you.

Jixr

I never took it off. its exactly how it was when it left the shop.

fietsbob

They made that choice for you , We @ my LBS Get Them on new bikes.. clear plastic weigh neatly zero.

the vain race bike crowd here calls them 'dork discs'..

Semipedersen

That sucks. Maybe you can make a deal with the bike shop. Ask them to send you the spare parts for free. You can also contact the manufacturer. Pictures and public posts on manufacturers facebooksites have helped me a number of times...

Jixr

Yeah, the shop was going to get in touch with their fuji rep to see if there is anything they could do for the frame.

But since its now an old model, ( the 2017's have different frames and components ) not sure how easy it would be to get a replacement.

indyfabz

A replacement frame for paint chips?

jefnvk

While I understand your point, I can also understand the OPs annoyance at a brand new bike they just dropped money on being marred because of a shop screwup.

endcapz

And assuming that this is a typical issue with only a handful of actual causes, I think it would then be safe to assume that they DIY method might be out of this guy's wheelhouse. Unless, of course, he's willing to learn how to do much more (and do that much more properly) than just bolting a hanger on a frame and bolting a derailleur to the hanger.

cyccommute 

Modern spoke protectors don't protect from this kind of damage. They are simply too small and only serve to protect the spokes from being chewed up in the event that the chain overshifts.