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View Full Version : hub dimensions 5700/6800; and a question...


AngryScientist
06-11-2014, 09:24 AM
I have a set of wheels that i use for rough road events, 5700 hubs to some wide rims. i'm very seriously considering going to 11-sp on the bike in question, anyone know: should i be able to pull out the 5700 hub, plug in a 6800 hub and re-use the same spokes?

also, any intel on when new 5800 hubs will land?

ColonelJLloyd
06-11-2014, 09:30 AM
The dimensions on this site (http://leonard.io/edd/) would indicate the shells are different. That's not to say the existing spokes won't be close enough to work just fine.

oldpotatoe
06-11-2014, 09:39 AM
I have a set of wheels that i use for rough road events, 5700 hubs to some wide rims. i'm very seriously considering going to 11-sp on the bike in question, anyone know: should i be able to pull out the 5700 hub, plug in a 6800 hub and re-use the same spokes?

also, any intel on when new 5800 hubs will land?

I think the 6800 RH flange is about 2mm inboard compared to 6700(Samo for 9000) but above is hub dimensions. 5800 hubs probably along with 5800/5850 group....fall time frame. Depending how close spokes are being correct, probably reuse.

AngryScientist
06-11-2014, 09:50 AM
wow, great site up there, thanks guys!

oldpotatoe
06-11-2014, 09:57 AM
wow, great site up there, thanks guys!

6800 rear on site says 28.5mm right center to flange...don't think so...in the 18mm range.

9000/6800/5800(probably) hub dimensions almost identical to Campagnolo, btw, even hi-lo flange...I think they are working together.

ColonelJLloyd
06-11-2014, 10:21 AM
6800 rear on site says 28.5mm right center to flange...don't think so...in the 18mm range.

Always best to confirm with a caliper.

Gummee
06-11-2014, 10:26 AM
alternatively:

I've got a friend of a friend that's machined off the 'spacers' at the end of the FH body from one of my 7700 hubs. He took off the inboard 'shoulders' on the FH body I gave him.

Looks like it'll still work clearance-wise. From looking at the other hubs in the garage, the Shimano hubs can pretty much all be done, but the King, Hugi, and Mavic hubs can't.

I'd say pulling the FH body (10mm wrench and some cone adjusting) is easier than re-lacing a wheel.

HTH

M

AngryScientist
06-11-2014, 10:31 AM
that is an interesting prospect. i do have access to a machine shop...

Look585
06-11-2014, 10:36 AM
alternatively:

I've got a friend of a friend that's machined off the 'spacers' at the end of the FH body from one of my 7700 hubs.

I would guess your friend/friend could do a tidy business machining Shimano hub bodies. How much time could it take? $20-30 for a few minutes work would be a price I (and many others) would pay to extend the life of nice 10s Shimano wheelsets...

Gummee
06-11-2014, 10:45 AM
I would guess your friend/friend could do a tidy business machining Shimano hub bodies. How much time could it take? $20-30 for a few minutes work would be a price I (and many others) would pay to extend the life of nice 10s Shimano wheelsets...

I've thought about asking... I've got another friend with more metal-working stuff in her garage too.

If I get 5% for being the middle-man, I'll be able to buy... lunch!

M

Gummee
06-11-2014, 10:46 AM
that is an interesting prospect. i do have access to a machine shop...
Freehub bodies are relatively inexpensive if you can get one wholesale (or on ebay). I gave the guy that did mine a Ti FH body that was seized to play with so I/he didn't ruin anything good.

edited to add: you're taking off 1.85mm of material at the inboard end of the splines. If you're willing to play with the #s you may be able to knock that down a little. Say 1.6mm or so as a minimum to get the lockring/cassette to sit right. I haven't tried it 'cause I don't have access to a machine shop of my own.

M

oldpotatoe
06-11-2014, 01:30 PM
alternatively:

I've got a friend of a friend that's machined off the 'spacers' at the end of the FH body from one of my 7700 hubs. He took off the inboard 'shoulders' on the FH body I gave him.

Looks like it'll still work clearance-wise. From looking at the other hubs in the garage, the Shimano hubs can pretty much all be done, but the King, Hugi, and Mavic hubs can't.

I'd say pulling the FH body (10mm wrench and some cone adjusting) is easier than re-lacing a wheel.

HTH

M

Why couldn't shimano do this?

Gummee
06-11-2014, 01:55 PM
Why couldn't shimano do this?

planned obsolescence

sell more wheels (Now they go to ELEVEN!)

etc etc etc

Oh, I'm sure that the engineers have a great reason... (its safer for the kids ya know!)

I'm not 100% that this will work on all Shimano wheels or with all Shimano cassettes. Shimano is very conservative in that regard.

M

oldpotatoe
06-11-2014, 02:08 PM
planned obsolescence

sell more wheels (Now they go to ELEVEN!)

etc etc etc

Oh, I'm sure that the engineers have a great reason... (its safer for the kids ya know!)

I'm not 100% that this will work on all Shimano wheels or with all Shimano cassettes. Shimano is very conservative in that regard.

M

I know, rhetorical ?

Making 3 generations of hubs obsolete....

Gummee
06-11-2014, 02:19 PM
Making 3 generations of hubs obsolete in one swell foop....
fixt

M

buldogge
06-12-2014, 09:38 AM
Did you run the modified FHB on the road yet?

I seem to remember a couple online blogs where they also had to machine some material off of the hub shell itself to gain the full (necessary) 1.8mm, or whatever.

I generally don't use Shimano (nor know much about "them")…but…I have CNC capabilities and would happily pick up 10s DA hubbed wheelsets at good prices if I knew I could run 11s cassettes on them!

-Mark in St. Louis

alternatively:

I've got a friend of a friend that's machined off the 'spacers' at the end of the FH body from one of my 7700 hubs. He took off the inboard 'shoulders' on the FH body I gave him.

Looks like it'll still work clearance-wise. From looking at the other hubs in the garage, the Shimano hubs can pretty much all be done, but the King, Hugi, and Mavic hubs can't.

I'd say pulling the FH body (10mm wrench and some cone adjusting) is easier than re-lacing a wheel.

HTH

M

zzy
03-09-2015, 05:18 PM
Sorry to bump this from the grave, but has anyone tried machining 8/9/10 freehubs to fit 11sp cassettes yet? Seems like a good solution if it fits the frame. This thread actually came up after a google search.

rccardr
03-09-2015, 08:12 PM
Been through this whole thing already.

5800 freehub will not fit on a 5700 hub shell, the base extrusion is larger on the 5800. Not even close.

5800 rear hub will easily re-lace to a rim previously laced to a 5700 hub, using the same spokes. No problemo.

This was with A23's but can't imagine there would be any. problem with a different rim set. The hubs were very close dimensionally.

oldpotatoe
03-10-2015, 05:13 AM
Been through this whole thing already.

5800 freehub will not fit on a 5700 hub shell, the base extrusion is larger on the 5800. Not even close.

5800 rear hub will easily re-lace to a rim previously laced to a 5700 hub, using the same spokes. No problemo.

This was with A23's but can't imagine there would be any. problem with a different rim set. The hubs were very close dimensionally.

Yup, the 11s FH don't fit onto the same model hubs(9000/6800/5800). 17mm center to flange on the right side vs 19 and 1mm bigger RH flange diameter(actually a hi-lo by 1mm like Campagnolo) but in spoke calcs, same length spokes 5700-5800, 6700-6800, 7900-9000...

echelon_john
03-10-2015, 06:12 AM
Hi all,
EASY fix here to run an 11sp cassette as a 10sp on a Shimano 8-9-10 hub.

Get a 5800/6800 cassette. 11/28, for example. Remove the 14T cog and its associated spacer. First try a 1mm spacer behind the cassette, and install normally except for the 14 and the spacer. If you tighten the locking and there's still play, use the spare spacer that you removed for behind the cassette instead.

Voila--11sp spaced cassette on 10sp hub, you still have a good progression: 11-12-13-15-17-19-etc and you don't have to buy all new wheels right now just to take advantage of new components.

Gummee
03-10-2015, 06:34 AM
Token and Edco are both supposedly making cassettes that'll do 11 on a 10-sp freehub body. I haven't tried em yet tho. Token didn't have any 11-28s in when I asked about it.

No to the 'did I try the freehub body on the road.' The body I had shaved was seized (no sense wasting a perfectly good FH body!) and I went and bought more wheels and/or hubs first.

If anyone wants to try a seized 7700 Ti FH body that's been shaved down, they can have mine.

M

oldpotatoe
03-10-2015, 06:50 AM
Token and Edco are both supposedly making cassettes that'll do 11 on a 10-sp freehub body. I haven't tried em yet tho. Token didn't have any 11-28s in when I asked about it.

No to the 'did I try the freehub body on the road.' The body I had shaved was seized (no sense wasting a perfectly good FH body!) and I went and bought more wheels and/or hubs first.

If anyone wants to try a seized 7700 Ti FH body that's been shaved down, they can have mine.

M

Wheels Manufacturing does to....

echelon_john
03-10-2015, 07:07 AM
Yep. $170 retail is too dear for my frugal Yankee self, though! ; )

Wheels Manufacturing does to....