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Frame Geometry Registry

Old 02-05-18, 09:56 AM
  #51  
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Colnago

Master Pista


C50 Pista


Dream Plus Pista

Last edited by taras0000; 02-05-18 at 10:32 AM.
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Old 02-05-18, 10:04 AM
  #52  
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Originally Posted by taras0000
DF3
I've had this file for years (since 2009 or 2010). The numbers are slightly different. My guess is that this is from a 1st Generation DF3:

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Old 02-05-18, 10:21 AM
  #53  
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When Mr. Tiemeyer had down time between custom jobs, he would make some track frames using standard geometry and have them on hand for painting and quick delivery. This came in handy when a person needed a frame within a week or so (after a crash, didn't need custom geo, simply impatient). These were sold at a lower price than the custom frames. I'm sure that some of these are still being ridden. If you have one, this *might* be your geo chart:

Small:


Medium:


Large:

Last edited by carleton; 02-05-18 at 12:28 PM.
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Old 02-05-18, 10:39 AM
  #54  
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Cipollini

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Old 02-05-18, 10:42 AM
  #55  
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Thanks @carleton! I forgot that Tiemeyer had off the peg frames.
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Old 02-05-18, 11:00 AM
  #56  
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Originally Posted by carleton
When Mr. Tiemeyer had down time between custom jobs, he would make some track frames using standard geometry and have them on hand for painting and quick delivery. This came in handy when a person needed a frame within a week or so (after a crash, didn't need custom geo, simply impatient). These were sold at a lower price than the custom frames. I'm sure that some of these are still being ridden. If you have one, here is your geo chart:
Not exactly. I have a small stock Signature, and it's different than that drawing. Maybe he changed it at points in his career. Mine's from 2011, and has a 74deg seat tube, slightly longer headtube, and a few other differences.
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Old 02-05-18, 11:01 AM
  #57  
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Old 02-05-18, 11:04 AM
  #58  
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Old 02-05-18, 11:07 AM
  #59  
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Old 02-05-18, 11:14 AM
  #60  
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Affinity

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Old 02-05-18, 11:33 AM
  #61  
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AXMAN / LOOK 564P

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Old 02-05-18, 12:27 PM
  #62  
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Originally Posted by queerpunk
Not exactly. I have a small stock Signature, and it's different than that drawing. Maybe he changed it at points in his career. Mine's from 2011, and has a 74deg seat tube, slightly longer headtube, and a few other differences.
Whoops!
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Old 02-05-18, 05:15 PM
  #63  
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Originally Posted by topflightpro
This is great Taras.

If anyone wants a useful tool for comparing up to three frames, Stack and reach calculator is great. It really shows what is needed to make two frames fit the same.

And this tool lets you play with stem lengths and angles: Stem Comparison Tool | yojimg.net
Interestingly enough, I plugged in the numbers for the "tiny" Bridgestone/Anchor TR9 in size L (with the 555 cm top tube) and compared it to two of my current track frames (A 58cm Fuji Track Pro from 2003, and a 61cm (with a 57cm top tube) Superb Sprint (AKA Colossi Cannondale Track knockoff), and found that the reach value on the "tiny" Bridgestone was longer than both (by two or so MM anyways).

I suppose it makes total sense given it's a much lower stack frame, but it's definitely would be a useable frame for someone who's in the 6' range.

Separate from that, I'm also working on making a better version of this with React as seen here, although I don't have support for multiple bikes yet. I do plan on pushing in some of these numbers so you can just scroll through instead of having to manually dig through, but that's a lot of JSON building.

https://tbeaulieu.github.io/framebuilder2d/
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Old 02-05-18, 07:48 PM
  #64  
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Originally Posted by octopus magic
Interestingly enough, I plugged in the numbers for the "tiny" Bridgestone/Anchor TR9 in size L (with the 555 cm top tube) and compared it to two of my current track frames (A 58cm Fuji Track Pro from 2003, and a 61cm (with a 57cm top tube) Superb Sprint (AKA Colossi Cannondale Track knockoff), and found that the reach value on the "tiny" Bridgestone was longer than both (by two or so MM anyways).

I suppose it makes total sense given it's a much lower stack frame, but it's definitely would be a useable frame for someone who's in the 6' range.
Jeez. Really?! I lusted after Anchor/Bridgestone bikes for years but avoided them for the "short" top tube. [smacks forehead]
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Old 02-05-18, 07:52 PM
  #65  
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Originally Posted by octopus magic
Separate from that, I'm also working on making a better version of this with React as seen here, although I don't have support for multiple bikes yet. I do plan on pushing in some of these numbers so you can just scroll through instead of having to manually dig through, but that's a lot of JSON building.

https://tbeaulieu.github.io/framebuilder2d/
Very cool.

Keep us posted. I know it's a lot of work, but it'll be very useful when it's done. I make software for a living, so I know what's involved. Good luck!
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Old 02-05-18, 08:08 PM
  #66  
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Originally Posted by carleton
Jeez. Really?! I lusted after Anchor/Bridgestone bikes for years but avoided them for the "short" top tube. [smacks forehead]
Fun activity, if you just take a measuring tape to your own frame and drop it down, you'll see the "top tube" length decrease. Good ole geometry!

This kinda proves that reach is even more important for fitment than top tube length (that I always used to go on), although honestly National/Worlds level track frames are in a different world of fitment than say, "my first road bike" where you can kinda guess rule of thumb.

(I've always wanted a Bridgestone to replace my Fuji, but I really don't want to be "that guy")

Edit: IIRC I remember you having issues with your Look, the Bridgestone size Large is basically almost the same measurements as the 496/L96 Medium, so I'm guessing it might not be the best choice.

Last edited by octopus magic; 02-05-18 at 10:20 PM.
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Old 02-06-18, 07:21 AM
  #67  
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Originally Posted by octopus magic
Interestingly enough, I plugged in the numbers for the "tiny" Bridgestone/Anchor TR9 in size L (with the 555 cm top tube) and compared it to two of my current track frames (A 58cm Fuji Track Pro from 2003, and a 61cm (with a 57cm top tube) Superb Sprint (AKA Colossi Cannondale Track knockoff), and found that the reach value on the "tiny" Bridgestone was longer than both (by two or so MM anyways).

I suppose it makes total sense given it's a much lower stack frame, but it's definitely would be a useable frame for someone who's in the 6' range.

Separate from that, I'm also working on making a better version of this with React as seen here, although I don't have support for multiple bikes yet. I do plan on pushing in some of these numbers so you can just scroll through instead of having to manually dig through, but that's a lot of JSON building.

https://tbeaulieu.github.io/framebuilder2d/
whoa this is cool as ****!

one thing that would be really cool, without having to build a database of these measurements (which, ugh, would be tricky because not everyone publishes the same amount of data), would be allowing a user to upload a row of data in the right format to plug into your system; or, allowing your system to save two profiles that a user could toggle between (or that the system would superimpose).
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Old 02-08-18, 07:34 PM
  #68  
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Updated the BT Geometry on the 1st page.
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Old 02-08-18, 08:05 PM
  #69  
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Originally Posted by queerpunk
whoa this is cool as ****!

one thing that would be really cool, without having to build a database of these measurements (which, ugh, would be tricky because not everyone publishes the same amount of data), would be allowing a user to upload a row of data in the right format to plug into your system; or, allowing your system to save two profiles that a user could toggle between (or that the system would superimpose).

Thanks!

Yeah, I want to get some localstorage ability in, I'm rebuilding it now to be based off Redux as it's starting to become unmanageable as a raw React piece.

Building a database for people to open contribute would be feasible, but I'm not sure if it's verifiable.

I'm also working on getting it into 3JS next.

https://threejs.org/
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Old 02-09-18, 05:10 AM
  #70  
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Originally Posted by octopus magic
Thanks!

Yeah, I want to get some localstorage ability in, I'm rebuilding it now to be based off Redux as it's starting to become unmanageable as a raw React piece.

Building a database for people to open contribute would be feasible, but I'm not sure if it's verifiable.

I'm also working on getting it into 3JS next.

https://threejs.org/
I would imagine if you created an account system for uploading to the database and tight validation you could tie it down and not have to worry about folk breaking it.

On a side note, I'd be surprised how many of our fellow posters didn't run straight off to google what React, Redux and 3JS is
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Old 02-09-18, 02:13 PM
  #71  
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How would you deal with something if the geometry didn't add up?
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Old 04-06-18, 11:20 PM
  #72  
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Boardman TRK 9.8

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