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Anyone want Blackburn rear rack adaptors for eyelet-less dropouts?

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Anyone want Blackburn rear rack adaptors for eyelet-less dropouts?

Old 07-20-21, 05:42 AM
  #1  
oneclick 
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Anyone want Blackburn rear rack adaptors for eyelet-less dropouts?

I have a set of these, new in the bag, but I'm keeping 'em.

HOWEVER, they look easy enough to make, so I did - gave a pair to the nice mechanic at the LBS. (I sourced some hard rubber washers and stainless button head 5mm screws.)

Is there any call for these? If there is I'll set up the lathe again and make a bunch of sets and list them in the sales sub-forum.


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Old 07-20-21, 09:25 AM
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i have used these before and they are a great solution, better than what I cobbled together from plumbing parts at ACE

I would be interested, even though I have no immediate need (typical just in case parts )
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Old 07-20-21, 09:34 AM
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These are great adapters, here there's a rack, mudguard stays and pannier hook attached.
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Old 07-20-21, 10:16 AM
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Same here: no immediate need but I sure would like to be able to buy some when I do have a need!
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Old 07-20-21, 10:42 AM
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The bolt that attaches a cheap derailleur to the stamped dropout on a low end bike threads into a strangely shaped nut on the inner side of the dropout. Those strangely shaped nuts are useful for exactly this purpose.
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Old 07-20-21, 10:54 AM
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-----

thanks very much for creating this thread

these fittings are so doggone handy!

have not seen them available for decades


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Old 07-20-21, 11:34 AM
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I'm reminded that I have a set of those in the bin, takeoffs from something I flipped a while back. I hadn't seen them before and can see they are a nice solution to the problem of no dropout eyelets.
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Old 07-20-21, 12:05 PM
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Originally Posted by rhm
The bolt that attaches a cheap derailleur to the stamped dropout on a low end bike threads into a strangely shaped nut on the inner side of the dropout. Those strangely shaped nuts are useful for exactly this purpose.
They are almost exactly the same size, measuring the largest and smallest diameters, but the nice thing about the real ones is the curved shoulder, which fit the curved ribs of forged dropouts better - they self-centre when you mount them. The stepped shoulder of the claw-fixing-nut lets it tilt and wobble about unless it's on a stamped dropout.
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Old 07-20-21, 12:21 PM
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I just use a pair of plastic-coated P-clamps, taking advantage of the chain hanging peg to prevent slippage.
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Old 07-20-21, 12:30 PM
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Originally Posted by oneclick
They are almost exactly the same size, measuring the largest and smallest diameters, but the nice thing about the real ones is the curved shoulder, which fit the curved ribs of forged dropouts better - they self-centre when you mount them. The stepped shoulder of the claw-fixing-nut lets it tilt and wobble about unless it's on a stamped dropout.
Yes, that is true. To make the claw-fixing-nut do the job, a little work with a file is required (which will lead to rust issues). You also have to drill out the threads on one side. So the real thing is definitely better than my solution. The claw-fixing-nut is no more than a useful hack, but worth keeping in mind.
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Old 07-20-21, 08:50 PM
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I used my last NOS set to attach this rear fender. Never know when I might need anther set.


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