jamesdak 

I've still got the 7s Dura Ace Uniglide hubs floating around which are 126mm rear spacing. I also want a good 126mm wheelset for use on the Krapft bike. What's on there are pretty low end ones I had around from some other bike. I just want to make sure I get my hands on the right uniglide cassette first. Does it have to be a 7 speed or will an 8 speed uniglide cassette fit? This bike is running friction DT shifting so spacing between cogs is not a concern. Any thing else I should be considering if I go this route?

My thoughts are lighter polished silver rims with the hubs to keep the same look I have now but with a better quality wheelset. I have a builder in mind already as I've never learned this skill.

I just don't want to go pay stupid money for a cassette that won't work with this hub.

thanks!


The middle hubset is the one in question.


I want the wheelset for this bike.

blamester

I have the tricolour hubs. I filed the long tab on a 9 speed hyperglide cassette. I used 6 of them and secured it with a lockring. Which I got of a bsa bb.
I had to use a spacer at the back of the cassette to get it snugged up and centered.
Thousands of km and no problems

masi61

I don’t believe you can run an 8 speed cassette on the 7-speed Dura Ace 126mm 7400 freehub. You probably could run non-DuraAce 7 speed cassette for all except the smallest lockring cog. Usually you can find Dura Ace Uniglide lockring cogs on eBay. I agree that new old stock 7 speed Dura Ace 7400 cassettes are going to be scarce or expensive. A clean used one might be easier to track down or you could improvise one from individual cogs.

52telecaster

If you don't mind modifying the cogs you can use any uni or hyper cogs. The modification is 5 minutes max with a file in a vice. Then you use whatever spacing you need to use with your selection of cogs. I run 14-36 on a tricolor hub. 7 speed touring.

PhilFo 

You can run up to 7 cogs on the DA Uniglide, and you don't need any specific cassette but you will need the correct small cog for the lockring. A DA cassette can be found but cogs is cogs when it comes to the Uniglide system, so buy whatever you can find, then make sure you have correct spacers and a correct 11 or 12 tooth lockring and you’re good to go. Don’t pay a ton to get an actual DA cassette when it’s the same thing as a Tourney one, just champagne color. Some of the 600 Uniglide hubs used the same small lockring, so you can also use them in your search.
I just finished building up a 1994 Breezer Lightning XTR with a 7 speed Uniglide cassette and it shifts perfectly with my XTII thumbshifters. Have fun and happy riding.

pastorbobnlnh 

I've had success building an 8-speed cassette on a 126mm UniGlide freehub by using 9-speed spacers.

Dave Mayer

Have you got your hands on the special Dura-Ace #1 and #2 cogs that fit this freehub? The #1 (Dura-Ace only) cog is a smaller diameter than the standard Uniglide #1 cog, and the #2 cog has 'tabs' that face inwards to engage with the splines. These cogs are basically unobtainable.

The remaining 5 cogs - if you have a flat file or a Dremel, then standard Hyperglide cogs can be made to fit, and in terms of shifting, are a big improvement over the clunky Uniglide cogs.

My advice: use a cheap 126mm OLD 7-speed Shimano rear hub that is Hyperglide-C cassette compatible, and save yourself a whole bunch of misery.

52telecaster

And 6 on a five using 9 speed spacing.

jamesdak 

Yeah, so this is what I was specifically looking for. I remembered this needed something special. May not be worth the bother.

montclairbobbyb 

You can also replace the Uniglide freehub with a Hypergljde freehub (Sheldon Brown shows how to do this), and then you'll have better luck finding a variety of cassettes.

Dave Mayer

Dura-Ace 740X freehubs feature a completely different attachment to all other Shimano rear hubs. They are NOT attached with the standard 10mm hollow bolt.

Yes, you could possibly find a Hyperglide-compatible 7403 freehub (rare as the Holy Grail), by first removing the old freehub with the equally rare TL-FH10 freehub remover tool. But since the 7403 freehub only came in a 8-speed version, then you would not achieve the objective of 126mm OLD.

BTW: the 7403 freehub is not Hyperglide-C cassette compatible.

Again, these rear hubs are only useful as paperweights. I know, I have several.

cudak888 

If he has access to the remover, I have the hub (provided someone on eBay doesn't snag it in the meantime). Shell is cracked, freehub is intact.




-Kurt

top506

One can make the removal tool out of a piece of square key stock and a file. There's a thread on here (somewhere) detailing the process, but I can't find it at the moment.

Top

top506

Found it:

https://www.bikeforums.net/classic-v...n-minutes.html

Top

jamesdak 

Guess what I found!

pastorbobnlnh 

I was digging through my UG spare cassette sprockets last week and I do have some spares. Unfortunately, most are not the DA silver. I even found some DA threaded sprockets. Most were for 6-speed cassettes. I'm hoarding the the 7-speed ones.

cyclic_eric

Nice thread. I hope this question is not too much off topic. Can I change individual cogs on my 7-speed Uniglide cassette?
I have one that came as 13-14-15-18-21-24-28, so a couple 1-tooth jumps and a four 3-tooth jumps.
Wouldn't 13-15-17-19-21-24-28 with the four 2-tooth jumps be "better"?
Most of my rides are in the hills.
Thanks

Jeff Wills

Yes you can change the individual cogs on your cassette. I used to do it all the time when I worked in a warehouse that stocked single Uniglide cogs and customized cassettes for shops that asked for it.
Finding individual Uniglide cogs is tough now. You might not be able to find what you want in the correct silver color, but all Uniglide splined cogs are the same inside diameter. Swap to your heart’s content.

dddd

The 15-18t jump is ugly, I draw the line at 13-15-17-20... which appears on countless build of mine using mostly the 13-28t 6s Uniglide freewheel.

pastorbobnlnh 

I found another 7-speed Dura Ace threaded UG sprocket yesterday! Doing so brought on a natural high.


Original dusty 13-23 UG cassette on my Schwinn 974. I switched it to 14-25.

Yesterday I also started cleaning the old glue off the rims of a Dura Ace UG wheelset I recently purchased. I'll probably build the cassette as 14-16-18-20-22-24-26.