Shimano two tone bicycle. What brand is it.
09-28-20, 09:46 AM
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Shimano two tone bicycle. What brand is it.
I bought this to convert to my winter bike. I'm curious to know who put it out. Any idea on year? Serial number on the BB is T8641. It's got Deore XT components.
09-28-20, 10:50 AM
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I doubt that Shimano ever licensed their name to be prominent on any complete production bikes, though bikes bearing the Shimano name were made for display purposes. Perhaps this is one such bike(?).
09-28-20, 12:00 PM
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The only MTBs I can think of that had the seat post binder in front like that are Univegas. I'm sure there are others, but most bikes of that era had the binder in the back.
Is there a serial number on the BB shell?
Is there a serial number on the BB shell?
09-28-20, 12:37 PM
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Why does it look like there's a rear binder as well? Nice lugs and the seat stay caps look cool.
09-28-20, 01:38 PM
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That looks too small to be a seat post binder on the back side of that lug. Maybe it was intended for a reflector mount, or rack mount or something? But now that you mention it, the Univegas I've seen with forward seat binders do not have that other part on the back side.
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09-28-20, 01:45 PM
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Nice looking frame, whatever it is.
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A race bike in any era is a highly personal choice that at its "best" balances the requirements of fit, weight, handling, durability and cost tempered by the willingness to toss it and oneself down the pavement at considerable speed. ~Bandera
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09-30-20, 07:19 AM
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That looks too small to be a seat post binder on the back side of that lug. Maybe it was intended for a reflector mount, or rack mount or something? But now that you mention it, the Univegas I've seen with forward seat binders do not have that other part on the back side.
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09-30-20, 10:44 AM
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That's an awfully nice bike. Could it be a Trek 900-series?
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09-30-20, 11:43 AM
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The Single-Track (9xx) Treks I've seen have seat binder collars.
10-02-20, 02:31 PM
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S/N and most components suggested a 1988-1989 model, so I started going through my old magazines from that era and may have found it. The 1988 Supergo Access Team was lugged, had the extended seat tube with the binder bolt in front and a Hite-Rite tab on the back, and even the down tube cable stops mounted atypically high on the side of the tube, as seen on the OP's bicycle. Components, including the Tioga stem, look mostly correct, with some replacements. The colour is correct for a blue fade overspray, after decals were removed. Given that Supergo was a (primarily) mail order, marketing brand , that might have been all the justification that the previous needed to give it a new identity.
10-02-20, 05:53 PM
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10-03-20, 11:52 AM
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Unreal. Hahaha 
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10-03-20, 07:35 PM
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Thanks T-Mar, I knew you'd have the answer closest to the bullseye. The Shimano decals on it are raised. They seem plastic instead of a film decal. So an after market spray job?
10-03-20, 07:37 PM
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Sorry, the Deore XT components number is M730 so '84-'93 production?
10-03-20, 09:31 PM
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There's date codes on the components, just look them up. Quite a sweet bike, Tange Prestige to boot.
I consider that overkill for a winter bike but lucky you!
I consider that overkill for a winter bike but lucky you!
10-04-20, 07:05 AM
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Deore XT M730 had its debut for the 1987 model year. In 1986, it was still the 1st generation M700 version (a.k.a. Stag's Head). It got an upgrade for the 1989 model year with new derailleurs , shifters and freehub to accommodate 7 speeds and Hyperglide, at which time Shimano officially renamed it Deore XT II. Another upgrade occurred for the 1990 model year with the introduction of the Rapidfire combined shift and brake levers and the name reverted to Deore XT! However, it was all still part of the M73x series and some of the original M730 components were still part of the group as late as 1993.
Given that the subject bicycle still used thumb shifters, it appeared to be 1987-1989, while the serial number suggested 1988 manufacture and therefore a 1988 model or a 1989 model manufactured late in 1988. It will be interesting to see the date codes.
I'm not positive but I think the blue is likely an an owner overspray.
Given that the subject bicycle still used thumb shifters, it appeared to be 1987-1989, while the serial number suggested 1988 manufacture and therefore a 1988 model or a 1989 model manufactured late in 1988. It will be interesting to see the date codes.
I'm not positive but I think the blue is likely an an owner overspray.
10-04-20, 07:46 PM
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Wow, thanks T-Mar, this bike gets more and more interesting and I haven't even started cleaning it. It does look like a respray.
10-04-20, 07:53 PM
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Just to ease other's minds, this bike will not see an Ohio winter. I've a short month or two to get it up and running for me but again it goes in storage for the wet, cold, chill months.
10-04-20, 08:51 PM
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So, who made the Supergo frames?
John
John
10-05-20, 11:45 AM
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New pics with new questions.
So here's some rear derailleur shots. The jockey wheels are red. And on the jockey wheel arm it's stamped "Max 28t", I assume it means 28 teeth on the largest cog. Was the jockey wheel arm/assembly an add on, an updated piece? And who'da made it?
10-05-20, 02:49 PM
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I took the rear wheel off and wiped off some grit from the rear derailleur. I think I found the mfg date code; LL. LL is also stamped on the backside of the thumb shifters. So per Shimano date codes; components made 1987, December?
