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interesting bike with some interesting parts: seatpost? pedals?

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interesting bike with some interesting parts: seatpost? pedals?

Old 03-12-19, 11:17 PM
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cheffyjay
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interesting bike with some interesting parts: seatpost? pedals?

I've acquired a bicycle billed as a Crescent Mark XX and it may or may not be so. It has an interesting seatpost:

it appears to be a one-off hand made thing. no adjust-ability and held together by a half inch bolt at the top. Has anybody seen one of these?

I've never seen pedals like these either:

anybody know about these?
thanks all!
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Old 03-13-19, 06:37 AM
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That seat post is definitely one for the display case!
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Old 03-13-19, 07:14 AM
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seat clamp disassembled.
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Old 03-13-19, 07:35 AM
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Wow, I have seen and heard about parts turned out by back shift machinists on company time but never for a bicycle.
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Old 03-13-19, 08:44 AM
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The pedals appear to be LLC, a German brand form the 1980s.
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Old 03-13-19, 08:50 AM
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Originally Posted by easyupbug View Post
Wow, I have seen and heard about parts turned out by back shift machinists on company time but never for a bicycle.
That is exactly what this looks like, except we don't know if was done on company time. If you know the angle that you want, for a machinist that can either tig weld or has a co-worker or buddy that can weld it, it isn't that hard to do.

The fact that it uses a grade 8 inch size screw confirms, to me, that it was made by a cyclist/machinist.

It looks completely usable if you like the tilt of the saddle.
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Old 03-13-19, 10:02 AM
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Originally Posted by Velo Mule View Post
That is exactly what this looks like, except we don't know if was done on company time. If you know the angle that you want, for a machinist that can either tig weld or has a co-worker or buddy that can weld it, it isn't that hard to do.

The fact that it uses a grade 8 inch size screw confirms, to me, that it was made by a cyclist/machinist.

It looks completely usable if you like the tilt of the saddle.
Agree, tig is a good strong weld for aluminum and the drillium is interesting, if it is a horizontal tilt I would have been happy with it. Being pedantic that is a grade 5 bolt.
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Old 03-13-19, 10:34 AM
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Originally Posted by Velo Mule View Post
The fact that it uses a grade 8 inch size screw confirms, to me, that it was made by a cyclist/machinist.
Three hash marks = Grade 5, but yeah. American one-off for sure.
EDIT: ^^^ beat me to it!
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