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Mystery Bike... Magnesium Frame?

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Mystery Bike... Magnesium Frame?

Old 01-04-24, 01:11 PM
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Mystery Bike... Magnesium Frame?

I just picked this up and have no clue what it is. My first thought was a Cannondale but I don't think that is right.
The guy I bought it from said the frame is magnesium, he seemed to know his stuff.
Needs cleaned up and tuned before I ride it so can't comment on how it feels.

Seatpost is 27.2
The brake bridge, binder bolt and chain stays should help ID it.
Full Dura ace so I would think higher end.
Any ideas?

Thanks






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Old 01-04-24, 01:26 PM
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I did it a little more looking after posting, I think it is an aluminum Trek. The seller sent me down a magnesium rabbit hole.
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Old 01-04-24, 03:47 PM
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Originally Posted by kfro12
I did it a little more looking after posting, I think it is an aluminum Trek. The seller sent me down a magnesium rabbit hole.
Its a Trek.
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Old 01-04-24, 04:56 PM
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Kinda cool but is the rear brake bridge screw/bolted to the frame?
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Old 01-04-24, 05:51 PM
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Originally Posted by kfro12
I did it a little more looking after posting, I think it is an aluminum Trek. The seller sent me down a magnesium rabbit hole.
Agreed. It has all the hallmarks of a bonded aluminum Trek.
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Old 01-04-24, 05:53 PM
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Originally Posted by merziac
Kinda cool but is the rear brake bridge screw/bolted to the frame?
No. The brake bridge is a piece of solid aluminum rod, bent into that inverted "U" shape, legs mitered to fit against the stays, and epoxied to the seat stays. The "U" shape was chosen to provide a larger surface area for bonding with the seat stays.
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Old 01-04-24, 06:11 PM
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Originally Posted by kfro12
The guy I bought it from said the frame is magnesium.
I'd be like, "ohhh k ... but what's the other 98 percent?"
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Old 01-04-24, 06:44 PM
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Originally Posted by JohnDThompson
No. The brake bridge is a piece of solid aluminum rod, bent into that inverted "U" shape, legs mitered to fit against the stays, and epoxied to the seat stays. The "U" shape was chosen to provide a larger surface area for bonding with the seat stays.
Tx John, probably knew that and it may be robust enough but a solid no go for me, still and again.

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Old 01-04-24, 06:58 PM
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Very limited tire clearance with the chain stays by what I can see . It may ride nicely , ya never know . The paint is nice.
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Old 01-04-24, 08:11 PM
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I'd tag it around 1987, probably a Trek 1000 or 1200. I had a slightly later 1100 that was a lot of fun. Aluminum frame, steel fork.

Is the DA equipment 7spd?
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Old 01-04-24, 08:27 PM
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Originally Posted by Kabuki12
Very limited tire clearance with the chain stays by what I can see . It may ride nicely , ya never know . The paint is nice.
Krylon True Blue. One of my favorite colors. I can't tell you how many bikes I have painted that color
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Old 01-05-24, 09:46 AM
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Originally Posted by billytwosheds
I'd tag it around 1987, probably a Trek 1000 or 1200. I had a slightly later 1100 that was a lot of fun. Aluminum frame, steel fork.

Is the DA equipment 7spd?
RIght on. Ya I looked up the serial number and it looks like 88 or 89.
It is 8 speed DA. I'm a sucker for the DA aero posts, they look great and polish up really well.
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