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This happened today: Chain dropped on the FD, busted the RD

Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

This happened today: Chain dropped on the FD, busted the RD

Old 05-05-15, 05:39 PM
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RomeoTango
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This happened today: Chain dropped on the FD, busted the RD

Not sure exactly how it happened. I was at the top of a climb in the small chainring and was shifting the rear down a cog or two trying to move on out. Went to shift the FD to the big ring and misshifted or something causing the chain to drop. That imposed slack in the chain which immediately wrapped around the forward portion of the cassette, which the yanked the RD up and over the cassette snapping in half. Seriously? Note the integrated, and now bent, hanger. Running brand new Force 22. Not new anymore...

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Old 05-05-15, 05:42 PM
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Silvercivic27
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Sweet! New frame time! Buy Shimano next time!
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Old 05-05-15, 05:53 PM
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This doesn't make any sense. If you dropped the chain to the inside on the front you would have lost tension in the chain but since you wouldn't be able to pedal anymore if that were the case, then the freewheel would have kicked in and the chain wouldn't have fallen to the inside. This looks more like the classic case of shifting the rear off the inside of the cassette without a dork disk.
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Old 05-05-15, 05:57 PM
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I dunno. I did that one time (with Shimano and nothing happened to my dérailleur or hanger, but I destroyed about 10 spokes
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Old 05-05-15, 05:59 PM
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$150-200 repair job. You came out easy on this one. the D could have taken out the wheel, frame or even you pending how it locked up.

I put my bet on...the chain was too short.
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Old 05-05-15, 06:21 PM
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Yeah, maybe I shifted front and rear too close together?

Chain, I believe, was exactly to the SRAM guidance.

Think the hanger is actually repairable then?
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Old 05-05-15, 06:23 PM
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The hangar on my 2010 Scott Addict is replaceable for sure, don't know about the Cr1 though...that's one part I've learned not to go on cycling vacations without... A $10 dérailleur hanger.
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Old 05-05-15, 06:55 PM
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The 2009 CR1 was the last year for the integrated hanger. Will take to the LBS tomorrow.
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Old 05-05-15, 08:19 PM
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Someone used to make a breakaway RD bolt for frames without a replaceable hanger. Can't remember who now, but I used to have one in my MTB.
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Old 05-05-15, 09:12 PM
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Originally Posted by RomeoTango View Post
The 2009 CR1 was the last year for the integrated hanger. Will take to the LBS tomorrow.
Oh man, that stinks. But on the bright side, you aren't injured and new frame time!
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Old 05-05-15, 10:01 PM
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You'll be lucky if you actually get a warranty frame, since they'll claim operator error. Assuming you're still inside the five year period.
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Old 05-06-15, 05:54 AM
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Originally Posted by jsigone View Post
$150-200 repair job. You came out easy on this one. the D could have taken out the wheel, frame or even you pending how it locked up.

I put my bet on...the chain was too short.
Crossed my mind too. Not long enough for big-big.

Keep the chain, and check it when you get it fixed.
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