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Steel Mountain bike frame...what is it?

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Steel Mountain bike frame...what is it?

Old 04-27-20, 08:41 PM
  #1  
monsterpile
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Steel Mountain bike frame...what is it?

I picked this bike up a few weeks ago as a complete project bike someone put together for their son. It wasnít being ridden so they sold it to me. The frame looks to have been repainted and I canít tell what it is. I looked at the bottom bracket but the letters and numbers didnít seem to get me anywhere. Iíve done some looking around on google a couple times but canít find anything. I took it apart tonight (the bike didn't really speak to me) and noticed the curved possibly dropped chain stays. That made me more curious. It has 3 spots for water bottle cages so I was wondering maybe itís some sort of touring frame. Ok here are some pics Iím thankful for any help on this.


Complete bike as purchased.

bottom bracket

mostly bare frame
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Old 04-28-20, 02:46 AM
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The chainstays make me think of Univega’s “Max Mudroom” style from round ‘92ish onward
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Old 04-28-20, 03:02 AM
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I'd take a guess at Univega as well - indeed, I have my own repainted frame which was sold to me as a 90's Univega and it has the same curved/dropped chainstays (pics in my gallery, I don't think I have enough posts to copy them here yet). A google image search for "Univega max mudroom" shows several Univega Alpina frames of various vintages that look like either mine, or yours, so I'd guess your's is an earlier model from what I can gather.
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Old 04-28-20, 06:08 AM
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As others have said, Univega Alpina 5.5 or 5.7, from about 1994
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Old 04-28-20, 07:57 AM
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Thanks for the responses! I looked up some images and various sites and it sure looks like it is a Univega from the 90ís. Did these chain stays really give much more clearance than the typical frame of that era? I did some measuring last night but didnít really come to a particular conclusion in that regard.
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Old 04-28-20, 07:58 AM
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I'm guessing Univega as well. I have a '95 Alpina 505 and it looks very similar down to the three water bottle bosses.
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Old 04-28-20, 10:43 AM
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Originally Posted by monsterpile View Post
Thanks for the responses! I looked up some images and various sites and it sure looks like it is a Univega from the 90ís. Did these chain stays really give much more clearance than the typical frame of that era? I did some measuring last night but didnít really come to a particular conclusion in that regard.
The goofy chainstays do nothing except call attention to the (presumably) high bottom bracket. No reason the stays couldn't have been straight.
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Old 04-28-20, 04:50 PM
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Originally Posted by monsterpile View Post
...Did these chain stays really give much more clearance than the typical frame of that era?...
The curve allows the chain stays to be a little longer before they reach the tire, and therefor to flare out from the bottom bracket a little more than possible with straight stays. You could accomplish the same thing with longer straight stays but then the wheelbase would be longer.
Nevertheless I doubt that clearance was increased more than a few millimeters.
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Old 04-28-20, 07:47 PM
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Make sure that the seat post is inserted at least a couple of inches BELOW the top tube. Otherwise there's a risk of it torquing and snapping off that section of seat tube above the top tube.

I saw a frame break like that.

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