Picture!

And folks think I'm nuts for always traveling with an extra hanger for all my bikes.

p.s. This likely has nothing to do with your bike being a BMC. It happens to all makes and models. Still sucks though.

Nearly every bike has a flaw. You have a dodgy RD hanger. My Shiv has a seatpost collar that will pull out of CF - probably in a hotel room 3000 miles from home.

At least you have a replaceable derailleur hanger. I had to get a whole new Cervelo P3 when my derailleur hanger broke off as it was part of the frame.

That's is, from the title I thought they owed you a gift card or something.

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Boots
Fleet Feet Rochester, NY
Fleet Feet Buffalo, NY
YellowJacket Racing, Rochester, NY

Same thing happened to my 2013 BMC SLR01. When my deraileur hangar failed, the rear deraileur and chain ended up smashing and cracking my frame in 3 places. BMC wouldn't do a thing about it. I was left with an expensive piece of garbage.

Not a BMC specific problem. Happened to my Shiv after flying to IMFL. No dealer near Panama City had a replacement. Last minute save by my LBS who fed ex'd overnight to me before the race. Now I carry two extras in my tool bag.TSA pretty much dug around my iron case then would not let me re-situate packing. Fed EX ground from now on for me for destination races. There is a temp hanger that you can use in a pinch, shifting might suffer s bit though. Surprised on site mechanics didn't offer it to you.

This happened while riding not traveling. And caused injury too.

This is actually an interesting learning lesson. Sorry to hear about that but thanks for sharing.

Always carry a spare RD hanger, i have two for my CAAD10 and one for my transition in a tool box ready to go right now. I have learned this the hard way multiple times, they can bend quite easily.

Sounds like it performed as its designed to do.

Moral of the story, don't let the rear derailleur touch of lean on anything and check the alignment after traveling and before you ride it. A visual inspection should have thrown a red flag that the hanger was bent.

So your replaceable hanger did exactly as it was designed to do, break before your frame does. I think you need to thank BMC for saving your drive side chain and seat stays.

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mikebikefit.com
Facebook: Cordova Bicycle Fitting
F.I.S.T Certified

Wheels Mfg, where most bike shops get their hangers from, lists 254 different hangers. This is why we rarely have the specific one you might need in stock. Our shop stocks hangers for the Electra Townie and the Specialized Expedition, the two most popular bikes we sell, neither is a race bike by any stretch of the imagination. A hanger is almost always going to be a special order item, I always urge customers to order an extra if I need to order one. Like others have said, get a spare or two and throw them in your tool bag.

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Jim

**Note above poster works for a retailer selling bikes and related gear*

Goes online buys hanger for all bikes

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_________________________________
The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design.

BMC can also thank me for buying their product.

A proactive approach on BMCs part would be to put more emphasis on this issue as a potential problem and perhaps help the consumer by supplying an extra 20$ part.

Let's see 20$/6700$=0.3%. Happy customer = priceless.

Contacts LBS to order 2 hangers. Not required for other bike since titanium;)

I carry a spare for my Ti bike. Never hurts to be prepared.

I learned something.

My Look came w/an extra. Perhaps I'll bring it with me when I travel.

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I saw this on a white board in a window box at my daughters middle school...
List of what life owes you:
1. __________
2. __________
3. __________

This:



manofthewoods

May 31, 15 17:26

Post #20 of 20 (15 views)
Re: BMC owners bewarned [logella] - NEW [In reply to]Quote | Reply

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logella wrote:
triordie1994 wrote:
Contacts LBS to order 2 hangers. Not required for other bike since titanium;)

I carry a spare for my Ti bike. Never hurts to be prepared.
I learned something.

My Look came w/an extra. Perhaps I'll bring it with me when I travel.

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I could break the course record - theoretically, Bishop Pickering - from the movie "Caddyshack"

All the Tri bikes you are going to buy on the market are going to have derailleur hangers made of alluminum that are DESIGNED to break before your frame does. This is not a BMC issue. There is a difference between design flaw and Designed flaw. Should every super bike come with an extra hanger? That would be nice but not all do. Should they also include extra bolts, tires, tubes for when they wear out or break? When I break a hanger I blame myself or the stick that got caught in the derailleur, I don't blame the bike company since they aren't the ones who broke my hanger.

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mikebikefit.com
Facebook: Cordova Bicycle Fitting
F.I.S.T Certified

This. /\

Derailleur hangers have, unfortunately, become very specific to specific models/brands rather than having universal hangers. It's well worth having 1-2 in your tool box just in case of a problem like this. It's a cheap insurance policy since pretty much everything else you'd need can be procured with relative ease.

Where is the blame in the original post?

It was an FYI hence 'be warned'. I wish I could have been warned as well.

I had the same issue just before Ironman Austria 2015, though bent not broken. Good news- I had purchsed a spare from my local bike store. Bad news: they had sold me the wrong replacement. Fortunately a local bike mechanic got my original hanger back to 98% of the spec. Lesson learned? Not only should I carry an extra hanger, I should not trust my bike store that they sold me the correct one and physically check to see if it is compatible.

My mountain bike racing days taught me real fast that you always have spares. In MTBing it's not uncommon to break them a couple times a year.

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_________________________________
The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design.

This can also happen very easy in the transition zone.
Had my bike racked pre-race, wind gust knocked a few over, mine landed on its drive side, hanger bent in..
I too carry a Wheels Mfg spare to races now.

Just wondering, Will a shop ever take a hangar off an existing in-stock bike in a pinch to help a guy out for a race and just order a new hangar? I would imagine TM01's don't exactly fly off the shelves everyday.

User error. Bike manufacturers can be blamed for plenty, but this is not one of them.

From what you write I take it that you did not check that the derailleurs worked properly after you unloaded/reassembled the bike (from your account it sounds that you bent the hanger while transporting it in your vehicle).

Checking them to operate cleanly through the whole gear range after man-handling/transporting the bike is not BMC's responsibility.

I think you learned an expensive and painful lesson...

Disclaimer: I don't own a BMC and don't care for them for a variety of reasons.

One did offer to take one off a bike but by the time they called me I had packed up the trailer and was 3-hours away and 4pm the day before the race.

Where did I blame BMC? It was a warning for others to be prudent and order a spare for their bike.

Look provides a spare and it would be good practice for others to follow suit.

i just ordered another hanger.

thanks

I would say that would be highly dependent on who the customer is....ie. someone who spends a ton of money at the bike shop? OK, maybe not a ton, but buys their bikes from said bike shop? Then maybe. But a stranger to the shop? I wouldn't count on it, and if they do, I'd show up with a case of beer for them. My .02.

so true.....the moral of the story is to identify a bikes said weakness before it becomes an issue, and implement controls.

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"I would definitely smell her seat after a century ride"

I want to know how you busted a derailleur hanger so darn thick and short?






I just can't imagine it bending or breaking that easily.

It might have been bent slightly while it was boxed during travel. Got caught in the spokes in the large rear cog and snapped like a twig as the holes for the 2 fasteners provides a shear failure plane failure despite the thickness of what seems to be aluminum.

Like others have said this prevents damaging the frame.

Damn, that sucks. I guess if the force is rough enough it'll give but damn I just want to know what did it. Derailleur hangers need to be redesigned to handle tougher situations.

Better order a few for cheap insurance.


Erika Bohn
Element Cycles
m: 802-236-1061
www.elementcycles.com

These guys were great!!

Yes you are lucky I had to get an entire new bike because my dropout broke off instead of the $20 hanger. Not a BMC, but same type of problem.

My derailleur hanger story:

36 miles into riding the Blue Ridge Parkway on a 5 day trip, I somehow ripped off my rear deraileur, breaking the hanger. A carbon fiber Lapierre was not going to be easy to find a part for. I made a single speed, since I always carry a chain breaker and power link. Seems I missed the natural chain line by 1 cog. Every 1/3 of a mile or so, the bike would shift up a cog and the chain would be too tight to ride, so I would have to stop, loosen the wheel, drop the chain one cog. We rode for another 50 miles, 30 miles on the Blue Ridge and 20 miles off, stopping every 1/3 of a mile, to get to a mountain bike shop. I was about to buy a cross bike and ship my bike home, figuring I needed a cross bike anyways. Guy had told me there was no way he had that part, but went to look. I had settled on the bike to buy when the guy came back. He had the part. Somebody had ordered it for a Bianchi repair a while back and never came to get it. I told him he had no idea how sexy he looked at that moment. He replaced the hanger, the chain and the cable, and $147 later I was out the door. We finished the trip. I always carry a spare now. It is the only time I have ever needed it.

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"Remember: a bicycle is an elegant and efficient tool designed for seeking out and defeating people who aren't as good as you."

--BikeSnobNYC

This definitely sounds like you are blaming the derailleur hanger for your DNS, when it is entirely your fault for either bending it during transport and not inspecting it before riding, or for not having your RD adjusted property.

The warning is for others to maintain, adjust and inspect their bikes before riding, especially after transporting and/or big races.

.

Ornery comment.

If you don't know it could be a problem how do you inspect for it? Kind of like code.

Sigh....

We want you to come back to Indiana! PM me.

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STIndiana
America Multi-Sport, Inc.
America's Half June 10, 2017
USAT RD Century Club
http://www.americamultisport.com

Is it not common to remove the rear derailleur when boxing up a bike? I do this on the rare occasion I fly with a bike to ensure my hanger doesn't get smashed in transit.

Kind of like Cervelo's tri bikes, eh?

I always remove the rear mech when flying. It's not rocket science. I've seen people not do it and have problems.

Thanks for the "warning" though - you've reminded me to order a spare for my race bike.

Yep, for sure. But dérailleur hanger is a separate piece that screws on to the frame and is designed to break on impact to save the frame from damage. You would have to unscrew this piece as well or at least carry a spare to make sure you're not scrambling last minute.

Broken hanger + horizontal drop outs = race single speed and HTFU.

You're a horrible person for having any kind of problem. You should be ashamed for existing. Criticizing you without cause is how some people make themselves feel smarter.

Anyway, where's a good place to order a replacement hanger for a 2013 TMO2?

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Zen and the Art of Triathlon. Strava Workout Log
Interviews with Chris McCormack, Helle Frederikson, Angela Naeth, and many more.
http://www.zentriathlon.com

You are a ST anomaly.

Erika Bohn can help you out at:

Element Cycles
m: 802-236-1061
www.elementcycles.com

Hope this helps.

There's lotsa stuff people can tell us, but we never really learn till it actually happens to us. Deraillieur hangers are one such thing.

They are designed to fail, to protect the more expensive frame.

I had one break so bought another one. Now, whenever I buy a bike, I immediately buy a deraillieur hanger for it, just in case. Often, simply having a spare will mean it will never need replacing :-)

I had a buddy who went into a LBS for a hanger, with the broken one in his hand. The LBS realized they had him over a barrel, so charged him $60!!!!! They ass FK'd him and didn't even use lube.

Buy spares now, before you need them. They will never be cheaper than they are now :-)

Remember when you replace the hanger, to get it aligned so your bike shifts properly. Or buy a "Park Tools DAG-2" for about $50-60 and have it on hand to ensure you always have a straight hanger. My DAG-2 is one of the best tools I ever bought.

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TriDork

"Happiness is a myth. All you can hope for is to get laid once in a while, drunk once in a while and to eat chocolate every day"

Thanks, man! I have a big race coming up and this thread reminded me I needed to get a spare hanger just in case. And thanks to the OP as well.

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----------------------------------------------------------
Zen and the Art of Triathlon. Strava Workout Log
Interviews with Chris McCormack, Helle Frederikson, Angela Naeth, and many more.
http://www.zentriathlon.com

I just bought a new P2 and noticed to my surprise that it does not have a replaceable hanger. I am pretty disappointed about that - so my question is what did they do? Did you get a crash replacement deal on the frame?

Yes, they will offer you a crash replacement deal. It is the frame at wholesale cost. But it was still fairly expensive.

Wait. Your Cervelo dealer didn't tell you the first rule to owning a P2/P3?

If you crash, BE SURE to lean or fall left. This will ensure you don't break off hanger built into the frame.

I use North Shore Billet for derailleur hangers. http://northshorebillet.com/

I don't think folks were intentionally being hard on you here. Just trying to inform people that this is not a BMC issue. It is not an issue or a problem at all. It is the design intent for the derailleur hanger to bend and/or break.