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Need help identifying an older Trek

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Need help identifying an older Trek

Old 09-12-19, 07:55 PM
  #26  
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Originally Posted by altenwrencher View Post
Does it seem that more than one-half of photos of bikes being sold on line show the left side and not the right? Wouldn't you expect it'd be 50-50? Does some corollary of the Peter Principle account for that?
Here's a boring overly-logical not-the-least-bit-funny explanation -- by random chance, half (or more) are _initially_ posted with photos from the drive side. But those bikes sell faster, so over time, more of the remaining ads feature NDS photos.
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Old 09-13-19, 05:45 AM
  #27  
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ok, this is interesting... I just pulled a 26.8 seatpost out.

Looks like the lug ears *may* be squashed together more than they should, but will come back to this later today. Meanwhile, am I wrong to think that this is strange for this bike? Surely a 27.2 for the usual 531, or at least a 27.0 for older straight-gauge 531?
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Old 09-13-19, 06:19 AM
  #28  
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so here's top of the seat tube. my (unseasoned) eye says this looks pretty kosher, and the opening is undamaged and seems pretty round. But if old Treks are supposedly all 27.2, why on earth is 26.8 a snug fit here?

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Old 09-13-19, 07:05 AM
  #29  
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Regarding the fork issue, pull it and see what brand of fork it is. My 82 412 was made late in the model year. The fork in it is a Tange. It must have been a running change to get around the problem.
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Old 09-13-19, 07:19 AM
  #30  
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Originally Posted by seypat View Post
Regarding the fork issue, pull it and see what brand of fork it is. My 82 412 was made late in the model year. The fork in it is a Tange. It must have been a running change to get around the problem.
so I'd be looking for Ishiwata = possible problem, Tange = improved/safe(r) design?
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Old 09-13-19, 07:29 AM
  #31  
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Originally Posted by niliraga View Post
so I'd be looking for Ishiwata = possible problem, Tange = improved/safe(r) design?
I would probably say, Ishiwata-possible problem. Anything else-forget about it. Your serial number looks like it's early in the production run. Better check it.

Vintage Trek Bicycle Frame Serial Numbers in 1982
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Old 09-13-19, 07:51 AM
  #32  
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Originally Posted by niliraga View Post
ok, this is interesting... I just pulled a 26.8 seatpost out.

Looks like the lug ears *may* be squashed together more than they should, but will come back to this later today. Meanwhile, am I wrong to think that this is strange for this bike? Surely a 27.2 for the usual 531, or at least a 27.0 for older straight-gauge 531?
Just out of curiosity- what is that seatpost? It does look like a older/lower end replacement.

It should be 27.2.
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Old 09-13-19, 07:52 AM
  #33  
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Originally Posted by altenwrencher View Post
Does it seem that more than one-half of photos of bikes being sold on line show the left side and not the right? Wouldn't you expect it'd be 50-50? Does some corollary of the Peter Principle account for that?
Here's my theory on that.

Roughly 90% of people are right handed, so when walking a bike they tend to grab the bike with their right hand, and walk on the left side of the bike. They will also mount and dismount from the left side.

So when taking a photo, the walk it over to a wall, and lean it against it, all while standing on the left side.

Hence, we get mostly non drive side pictures.
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Old 09-13-19, 08:26 AM
  #34  
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Originally Posted by lostarchitect View Post
Here's my theory on that.

Roughly 90% of people are right handed, so when walking a bike they tend to grab the bike with their right hand, and walk on the left side of the bike. They will also mount and dismount from the left side.

So when taking a photo, the walk it over to a wall, and lean it against it, all while standing on the left side.

Hence, we get mostly non drive side pictures.
am liking it.

another theory, and one that's easier to disprove! -- maybe the distribution of photos is not what we *think* it is. Maybe drive-side is the clear majority because sellers are, on the whole, sensible, logical folk. (theory already struggling). But our own seething frustration at the hidden clues, unhelpful angles etc., makes the experience of a non-drive side photo so much more memorable and so we overweight the experience and feel these photos are the majority?

logical sellers? nah. lostarchitect's sounds more plausible.
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Old 09-13-19, 08:36 AM
  #35  
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Originally Posted by The Golden Boy View Post
Just out of curiosity- what is that seatpost? It does look like a older/lower end replacement.

It should be 27.2.
it's an old SR with the cheap side-bolt clamps - pretty tatty but factory milling & markings are all still there.
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Old 09-13-19, 10:46 AM
  #36  
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Originally Posted by lostarchitect View Post
Here's my theory on that.

Roughly 90% of people are right handed, so when walking a bike they tend to grab the bike with their right hand, and walk on the left side of the bike. They will also mount and dismount from the left side.

So when taking a photo, the walk it over to a wall, and lean it against it, all while standing on the left side.

Hence, we get mostly non drive side pictures.
The mount/dismount is the most likely explanation; even left-handed people mount/dismount from the NDS.
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Old 09-13-19, 11:26 AM
  #37  
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I would say it's because average Joe bike seller doesn't know that potential buyers are interested in the components. They are thinking about the frame only, so they take a picture from that side. The drive side will be covered up by..........components.
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