Hi guys, I've got an older Dura-Ace 6-speed freewheel that I want to use but my rear dropouts have 120mm spacing. Unfortunately, my frame is carbon fiber so I don't want to stretch anything. This has been driving me nuts because the freewheel just keeps rubbing on the dropout! :mad2: Do you guys know of any way to make this work? Thanks!
6 Speed Freewheel on 120mm Spacing?
linglingtom
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Hi guys, I've got an older Dura-Ace 6-speed freewheel that I want to use but my rear dropouts have 120mm spacing. Unfortunately, my frame is carbon fiber so I don't want to stretch anything. This has been driving me nuts because the freewheel just keeps rubbing on the dropout! :mad2: Do you guys know of any way to make this work? Thanks!
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It's a 1988 Centurion Dave Scott Ironman Carbon. It's actually not a track bike. It's a high end road bike.
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3,140 Posts
I would conclude that this has 126m spacing, this auction site listing: with original Shimano 600EX 7spd.
Very Rare - VINTAGE CENTURION IRONMAN DAVE SCOTT CARBON ROAD BIKE 55cm C-T | eBay
Very Rare - VINTAGE CENTURION IRONMAN DAVE SCOTT CARBON ROAD BIKE 55cm C-T | eBay
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16,359 Posts
as the others have said, if it's '88, it really should be 126mm. bikes went to 130 a year or 2 later. as Grumpy and Kuma posted stock '88 Dave Scott carbon frames had 7spd indexed Shimano 600. this could not work on a 120mm frame. my statement that the only carbon 120mm spaced frames are track frames is still correct.
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If I were you guys I would totally agree. However, it doesn't make sense for me to ask for help on an issue I would lie about or not be sure about.
Unfortunately, I'm at work right now but I'll post up some pictures when I get home. Then you guys can see my irritating dilemma.
Unfortunately, I'm at work right now but I'll post up some pictures when I get home. Then you guys can see my irritating dilemma.
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10,520 Posts
It might be that the problem's not with the freewheel. The axle might not be spaced correctly - spacers on the wrong side, in the wrong order, etc.If I were you guys I would totally agree. However, it doesn't make sense for me to ask for help on an issue I would lie about or not be sure about.
Unfortunately, I'm at work right now but I'll post up some pictures when I get home. Then you guys can see my irritating dilemma.
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Here's the pics guys.
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24,576 Posts
If the shift levers are not indexed, you can use an ultra 6 speed freewheel like this
http://www.ebay.com/itm/NOS-Suntour-Pro-Compe-Ultra-6-Speed-Freewheel-14x23-/270435211504
If the levers are indexed, the components were made for a bike with 126mm spacing. Since the frame is carbon with aluminum dropouts, you can't spread the frame to 126mm.
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http://www.ebay.com/itm/NOS-Suntour-Pro-Compe-Ultra-6-Speed-Freewheel-14x23-/270435211504
If the levers are indexed, the components were made for a bike with 126mm spacing. Since the frame is carbon with aluminum dropouts, you can't spread the frame to 126mm.
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4,354 Posts
that makes no sense. This thing was designed for a hub from the 70s?
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Or a Schwinn. Still, Centurions were 126 by, I don't know, 1980. And they definitely weren't carbon fiber. See what I'm saying?
Are you paying attention?
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Centurion tried to make a super high end racing model and came up with this. It was all carbon fiber with aluminum lugs are was a grand and a half at the time. When I bought it (used, unknown history), It came with Campy Nuovo Record Hubs with 120mm spacing and a 5-speed SunTour Pro Compe freewheel.
These are the hubs:
http://velobase.com/ViewComponent.aspx?ID=70ed32aa-11fe-49fb-bba3-a475b65a7410&Enum=110
These are the hubs:
http://velobase.com/ViewComponent.aspx?ID=70ed32aa-11fe-49fb-bba3-a475b65a7410&Enum=110
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24,576 Posts
You're stuck with either a 5 or an ultra-6 speed freewheel.
Good luck finding a 5 speed "racing" freewheel (13-22) or (14-24)
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Ultra-6 is going to be even harder to find.
It's even hard to find "racing" 7 speed freewheels anymore. All I have left is a 12-18 and a 13-24 Sachs, and a 12-19 DA, in good shape.
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Good luck finding a 5 speed "racing" freewheel (13-22) or (14-24)
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Ultra-6 is going to be even harder to find.
It's even hard to find "racing" 7 speed freewheels anymore. All I have left is a 12-18 and a 13-24 Sachs, and a 12-19 DA, in good shape.
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