Discussion in 'BIKE I.D. & VALUATION QUESTIONS' started by Bike from the Dead, Feb 4, 2020.
Alright, I'll try that. Thanks!
I take it that's a rare piece?
Oh, ok. I'm not familiar with all the abbreviations of bicycle anatomy yet.
I don't know if it is. Bikes from the 20s and 30s had them a lot and I had one as a kid on my tricycle.
A good quality gooseneck stem could be a sought after piece, especially if the retro racers recognize the brand. If you were to do a retro mountain bike with drop bars, that would work perfectly. Sometimes referred to as LD, or "limp Richard" stem.
The cranks look like a German "Glockenlager". There really isn't a way to use a regular crank puller on them. They are a pain to work with! Best German board I have found is:
Google translate will get you close, and some people are willing to answer a question in English. DeepL is a much better machine translator.
Ok, thanks! I'll take a look at it.
Ok, cool. Yeeeeeeeaaah, I'm just going to stick with "gooseneck."
Here is a bike that has a gooseneck clamp with a normal stem. Those bars are not going to twist.
How do those cranks work? How are they put together?
Just google "glockenlager" for a lot of information. Basically, they are steel cranks that are pressed onto a square taper axle. BUT and a big BUT, they are not threaded for a conventional crank puller. There is a youtube video that says to remove them, you need a brave man and a big hammer. If that doesn't work, get a braver man and a bigger hammer. There is a tool that clamps into the crankarm with a threaded hole for a bolt to force them off the axle. It is a weird system, but was used for decades.
Here is a picture of a factory "glockenlager abzieher"
and a home built:
Jeez, so what you're saying is that should I try to make this bike rideable again, I'm going to have a hard time pulling out the crank to fix the bearings?
Would you happen to have a link to that video? I'd like to see it.
Here's one video- not quite as I remembered it:
They are not impossible to take apart. Just consider it a challenge!
If you manage to take apart the side that does NOT have a sprocket, the other side will not need to be taken apart.
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