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what type of cassette does the Dura Ace hub require?

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what type of cassette does the Dura Ace hub require?

Old 07-02-10, 08:55 AM
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what type of cassette does the Dura Ace hub require?

I have an old (late 80s?) pair of wheels with nice Dura Ace hubs. it came of a friction shift Dura Ace equipped bike of that era. Years ago, when I complained to my bike shop that the range was too small to get over the area's hills, rather than change the cassette he just swapped on a pair of replacement wheels which I used for years.
The original DA wheels went into storage in his shop's attic and when I eventually recovered them recently, the rear was missing the cassette.

I'd like to get these wheels back on the road again. They make a nice set. But I've been told the cassette the rear hub requires was a Shimano one-off, some odd ball cassette and that standard modern ones don't fit the splines.

can anyone advise from these pics what I am looking forward and where I might find it?(or if I have been misadvised and a modern cassette might work.)
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Old 07-02-10, 09:11 AM
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Looks like an old 7 or 8 speed set up. Your LBS should be able to get one that will work. Do you knowhow many speed the original setup was?? If so just get a cassette that is the same number of gears as the original.
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Old 07-02-10, 09:37 AM
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Anything before 1996, 6-7-8 spd should fit. You could try Loose Screws. NOS Dura Ace cassettes though might be a little pricey.
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Old 07-02-10, 09:42 AM
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Looks like Uniglide. https://sheldonbrown.com/k7.html#uniglide
Will these work? https://www.thethirdhand.com/index.cg...&id=8872446945
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Old 07-02-10, 09:48 AM
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https://www.sheldonbrown.com/dura-ace.html

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Old 07-02-10, 10:32 AM
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Yep, the hub needs an obsolete DuraAce specific cassette to work. Normal uniglide cogs will fit but the diameter of the locking cog is smaller for the DA hubs. They show up on ebay fairly regularly. I've seen them stocked at some of the NOS places for $$$ so I'd try ebay first.

If you really like the wheels you could re-lace the rear with a new hub. As stated in the link operator gave, it is theoretically possible to replace the free-hub on the rear hub but the parts (and tool) to do this are nearly impossible to find.

Come to think of it....I might have an extra cassette lying around. PM me if you can't find anything else and I'll take a look.

Edit #2 - Loose screws does still stock these - search for 'dura threaded' and you'll get a list of them. You just need the threaded cog, the rest are standard uniglide.

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Old 07-02-10, 11:01 AM
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It's dura-ace 7400 series (if it's 7403 it's 8speed)
Do you still have any old cassette? (or lockring for that matter, the lockring is the last cog)
If not try to make a threaded thing to be used as lockring.

The splines in uniglide is identical to hyperglide, except hypeglide has a wider spline. So get a dremmel and grind the wider spline of the cog to make it look more normal, so that it will fit.

I have DA 7403 cassette on uniglide hubs and I've changed some worn cogs with some modern cassette cogs (you can change them all except the last cog which is the lockring) by grinding the wider splines.
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Old 07-02-10, 04:03 PM
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That is a Dura-Ace Uniglide freehub - looks like 8-speed to me. It is possible to transplant a HyperGlide freehub body onto that hub. The problem is the old Dura-Ace freehub bodies used a different threading so you can't use just any HyperGlide freehub body - it must be the Dura-Ace 7403 freehub body and that will likely be very diffifcult to find. You also need a special tool - see https://sheldonbrown.com/harris/k7.html#bodies. But if it were me, I would spend some time searching for one as it will be much easier to find HG cassettes than UG cassettes and you can also use 9- or 10-speed cassettes on the HG freehub body.
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Old 07-08-10, 09:38 PM
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I don't still have the original cassette (though I will check with the bike shop in France. goodness knows...)

I am not wildly in love with these wheels/rims - the front and back rims don't even match.
It's just that they ARE Dura Ace and they DO still spin smooth as silk and I DO have a batch of older bikes that are running on less good wheels and so I thought if there was a reasonable way of making these functional again, I'd like to do it.
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Old 07-09-10, 11:26 AM
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As per Capt. Bike here, you either get a cassette (you must have a lockring cog) or replace the hub.
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