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Bikerumor Monday Mystery Pic!

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We are reviving our Mystery Pic series! If you have any idea what this part is, please let us know in the comments section. This photo was submitted to us by Andy Wiedrich, Warranty Manager at University Bicycles in Boulder, Colorado, “We came across this guy, and have no idea what its for. FYI, A Ritchey Break Away Der hanger fits on this guy pretty darn close.”

To send in your own Mystery Pic to be considered for the Monday feature, click here and attach your photo with all pertinent information.

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22 Comments
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Todd
Todd
8 years ago

It’s clearly the drive side, rear dropout from a Specialized full suspension bike.

Sutherland
Sutherland
8 years ago

It’s a replaceable drop out, from the drive side of a full suspension bike.

MB
MB
8 years ago

Some sort of trailer mount?

Reg Stuart
8 years ago

Rear dropout pre assy rt side full suss

Alex C
Alex C
8 years ago

Specialized rear derailer hanger

Christian
Christian
8 years ago

Yeti WSBB Dropout adapter for a Yakamoto trailer! Yea…. that’s it… yea.

John
John
8 years ago

Looks very much like the drive side drop out off of a 2010-2011 ish Tranisition Double. Transition sold some of the drop out as “bottle openers” for a $1 on their website a while ago.

Steelrider
Steelrider
8 years ago

Looks like it would do a good job opening bottles, so I’m gonna say its a bottle opener

Andy
Andy
8 years ago

It’s clearly a late-90s Campagnolo bar-end derailleur hanger, from an ill-fated attempt to make the world’s first gravel racing bike.

Emanuele
Emanuele
8 years ago

It’s a drop out, drive side, but seem to be an insert for a Carbon frame… to be molded in the chainstay and clamped with a bolt on the seatstay.

gringo
gringo
8 years ago

looks like a generic drive side dropout from the TBG book (Taiwan Bike Guide). Can be ordered and used by frame makers who don’t have the resources to develop their own forged parts.

no it’s not Specialized…look at that pivot location.

ant1
ant1
8 years ago

campy suspension seatpost linkage. from their 1917 super roubaix line. maurice garin used these later in his career for all the cobbled classics.

Greg
Greg
8 years ago

Can opener

Aaron
Aaron
8 years ago

@John nailed it! I have a bunch of them in a box somewhere in the garage.

Gabriel
Gabriel
8 years ago

It looks like a belt´s frame dropout.

topcheese
topcheese
8 years ago

, no one uses cans anymore 😉

Kind Guy (970)
Kind Guy (970)
8 years ago

Shockster bolt on suspension drop out maybe?

j
j
8 years ago

John FTW. Have a few of those and they suck as bottle openers

Saris Mercanti
8 years ago

@ J,

Yup. John nailed it. To get them to work better as a bottle opener, you have a to grind in a lip to make them work well.

Ryan
Ryan
8 years ago

Bottle opener from Transition.

I can confirm, it doesn’t work for sh*t.

They didn’t charge me for mine though lol

Sacha
8 years ago

3D printed titanium drop out

maddogeco
maddogeco
8 years ago

The trick here is there is no sense of scale. This is a rare prototype Campy saddle. You can clearly see on the left side of the pic how it mounts to a vintage campy seat post.

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