curiousabe

So I recently scored a dura ace 7700 group set, however, it did not come with hubs or wheels. The bike I will replace group set on currently has Shimano 105 8 speed with a campagnolo cassette so cant use my current hub. Was looking around for 7700 hubs in decent condition but they are crazy expensive. Currently the bike Fir Net 97, 32 spoke rims which arent too worn, 130mm rear.

1. Found a pair of Shimano rs81-c24 locally for a good price, would these accept the Dura ace 7700 9 speed cassette? https://www.wiggle.co.uk/shimano-rs8...ncher-wheelset
2. If not, are there any decent modern hub I could use instead?
3. Any new rims that you could recommend that aren't super expensive but still good quality and not too heavy? Not looking for some aero rims so rim height / depth under 30mm, I think these ones are 26mm. : https://velobase.com/ViewComponent.a...83b6e&Enum=107

wheel


Rim


Rim


Rear hub, no name


Front hub, campagnolo

Mad Honk 

curiousabe,
Check out my for sale ad in C&V sales (some junk from the Mad Honk's trunk) Smiles, MH

bamboobike4

I actually have a set of Dura Ace WH-7700 wheels. While any Shimano/SRAM capable 8/8/19/11 rear would work, these are Dura Ace, if that is a goal.

I was holding them, pending another DA7700 build, but some other wheels have struck my fancy.

curiousabe

Those would be perfect but I'm located in Europe

Those would also be nice, where are you located?

Spaghetti Legs 

I’m very curious about your 8 speed Campagnolo cassette on the 105 group. Does it function OK? I’ve never heard of a Campy freehub on 8 speed Shimano hubs. Can you take the doohickey off the rear hub to confirm what make?

Disclaimer, I don’t speak fluent Shimano, but rode 9 speed stuff for a while and 9 speed 105, Ultegra, Dura Ace (5700, 6700, 7700) all work fine together. I think 9:speed cassettes, alluded to above, fit on 8 speed hubs, in which case, if your rear hub is indeed Shimano, then you just need Shimano or SRAM 9 speed cassette.

bamboobike4

At one time, I had a pair of identical bikes (long story), one with Shimano “tricolor” 8s STI and one with Campy 8s Ergo. I used the wheels as “interchangeable” all the time. There was enough chain play to have both work, but neither perfectly. The 8s Campy wheels were the Vento deep V, so they looked great on both bikes.

If the rear hub is Shimano, it has to be the version with BOTH internal and external threads. It’s 8s, per the author, so it should have them; we just can’t tell in the pic.

curiousabe

I mean I think it shifts good! Can only.compare it to another bike I have with shimano RSC group and sti from the same era but the RSX one defniatwly shifts quire a bit smoother.

Also I never said the hub was Shimano, I dont know who made the hub since there is no visible manufacturer. Front hub is campa and the rims look equally worn so maybe back is campa or something campa compatible?

Maybe someone knows what hub it is based on the shape?




If the hub has internal and external threads would that mean I could mount the dura ace 9s cassette or any other shimano 9s cassette?

Mackers

Rear is an 8 speed Campagnolo Athena.

It will only accommodate 8 speed Campagnolo cassettes.

Hondo6

You'll need to remove the lockring to be sure, but I'd guess Mackers is correct above and that's a Campagnolo hub. Campagnolo also uses a 12-notch lockring for their cassettes; it looks similar to those used by Shimano (not sure if the removal tools are interchangeable or not).

I'm certainly no Campagnolo expert, but I do know that Campagnolo and Shimano freehub cassette spline patterns are very different and aren't compatible. If that's indeed a Campagnolo hub and you want to use Shimano cassettes, you'll almost certainly have to replace the rear hub unless you can find a Shimano-type freehub designed to fit Campagnolo hubs. And I don't think you'll have much luck with the latter.

Hondo6

A Shimano 8-speed freehub should accept any 8- or 9-speed Shimano-compatible cassette, and should also accept a 10-speed Shimano-compatible cassette with a 1mm spacer. A Shimano 11-speed compatible freehub may require a 0.85mm spacer for an 8- or 9-speed cassette (I'd guess a 1mm would work also) and will require a 1.85mm spacer for a 10-speed cassette (still readily available, and a 2mm spacer would likely work also).

The RS81-C24 wheelset you found appears to be 10/11-speed compatible, so with the correct spacer the rear should accept a 9-speed Shimano cassette with no issues.

FWIW: many early Shimano Hyperglide freehubs were threaded both internally (for the Hyperglide lockring) and externally (on the outer part of the freehub splines) to allow older Uniglide cassettes to be used as well. Uniglide cassettes had no lockring, so the smallest cog was screwed onto the freehub and held the others in place. Only downside is that per the late Sheldon Brown the threaded end precludes using a Hyperglide cassette with 11-tooth smallest cog without an additional 1mm spacer behind the largest cog. Threaded Uniglide cogs are now fairly difficult to find.

bamboobike4

No. that’s a Campagnolo- compatible freehub. 8-speed Campy only.

I think I got the second part of my post confused with a different thread Re: an Edco hub. My apologies.

FrejusFlyer

I've got a set of C24's on my 9 speed DA bike. Using a 9 speed DA cassette and works fine.

bamboobike4

C24’s are great wheels.