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1988 Schwinn Circuit road bike frame questions

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1988 Schwinn Circuit road bike frame questions

Old 04-03-20, 11:18 AM
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NickAlonge
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1988 Schwinn Circuit road bike frame questions

Iím very new to vintage road bikes, Iíve had an 1988 schwinn circuit frame laying around for years. Is it possible to build it using newer components. I under stand that it originally came with an 7 speed Santeí group. Iíd like to build it with an 9 or 10speed group if possible. Iíve heard that you may have to widen the year to 130mm?
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Old 04-03-20, 11:28 AM
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Bill Kapaun
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Original spacing should be 126mm.
You can spread the DO's by 4mm by just stuffing the wheel in.
The right way is to have it cold set and the DO's realigned.
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Old 04-03-20, 11:38 AM
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There is a long running thread on this exact topic.

https://www.bikeforums.net/classic-v...i-s-ergos.html
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Old 04-03-20, 12:40 PM
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Yes, you can build it up with updated components. The Circuit is a great frame for modding. Check out the retro-roadie thread.
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Old 04-03-20, 01:01 PM
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Thanks everyone
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Old 04-03-20, 02:21 PM
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Personally the older stuff is better anyways in terms of durability! and if you change out the parts to modern stuff the bike is worth less and that bike was a very good bike in it's day and still is today. So I wouldn't bastardize it if it were me.
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Old 04-03-20, 04:30 PM
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Iíd love to run an

Campagnolo group hopefully an 10 speed. As far as Iím aware itís an 700c

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Old 04-03-20, 07:55 PM
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Originally Posted by NickAlonge View Post
Iím very new to vintage road bikes, Iíve had an 1988 schwinn circuit frame laying around for years. Is it possible to build it using newer components. I under stand that it originally came with an 7 speed Santeí group. Iíd like to build it with an 9 or 10speed group if possible. Iíve heard that you may have to widen the year to 130mm?
As you are starting with the bare frame, restoration purists won't howl. You got a lot of good advice, get the rear traingle cold set for wider modern hubs, then have the dropouts and derailluer hanger aligned. I updated my 1986 KHS Fiero a few years back to Shimano 105 10 speed kit. Certainly better kit than the 2x6 it had originally. Sure makes my old bike feel new. And my newest roadbike is only a 2006...
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Old 04-04-20, 08:42 AM
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I have a 78 Raleigh Comp and a 91 Schwinn Paramount. Both run better with upgraded components. My Raleigh had plenty of flex to let a 130 mm spaced hub fit the rear drops, so you might not need to do what they call cold setting. The Paramount already had 130 mm spacing. I've got 105 5800 11 speed on my Paramount, runs smooth and quiet. Campy, if that's your preference should too. Easier to get Shimano stuff though for better prices.

If your bike is in museum piece quality condition, and you want a museum piece that you ride once or twice a year, then keep it original.

But if you want to ride a great frame, then give it newer and better components. 10 or 11 plus gears on the back is better than anything less, unless you are in the flatlands with no hills.

Leaving old components on these great frames when the bike isn't intended to be a restoration for a museum is a terrible way to honor how great some of these old frames ride. IMO of course ............you vintage purists. I'll allow you to do what you want with your bike.

Last edited by Iride01; 04-04-20 at 08:47 AM.
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