Lightweights - Dura Ace 9000 compatible?

Everything about building wheels, glueing tubs, etc.
tommyb
Posts: 495
Joined: Wed Mar 08, 2006 7:50 pm
Location: Bolton
Contact:

by tommyb

I've tried looking through the other thread but it's 28 pages long now! :cry:

Anyone know if LW Gen. 3's are able to run 7900 11-speed?

User avatar
53x12
Posts: 3762
Joined: Fri Sep 15, 2006 6:02 am
Location: On the bike

by 53x12

Is the DA 9000 even out yet?
"Marginal gains are the only gains when all that's left to gain is in the margins."

by Weenie


sedluk
Posts: 409
Joined: Mon Sep 07, 2009 3:10 am

by sedluk

No one knows, maybe not even Shimano. We won’t know until they are released and the details are decided on.

I have to admit that my first guess would have been they will be compatible. One would assume that they would just use the same hub body and stick one more cog on the cassette like Campy. There was the possibility that the cassette would bend toward the spokes or something but there would most likely be room.

But the latest rumors are that they are truly increasing the size of the hub body. It would be a possibility that DT Swiss could come out with a new hub body. If the rumors are true then this would affect every DT Swiss hub out there including the Lightweight wheels, Reynolds that use DT Swiss, Zipp wheels built with DT Swiss. Every wheel built with DT Swiss. If DT Swiss could come up with a new hub body there still might be an issue with some wheels with the spokes hitting the derailleur.

So back to no one knows.

User avatar
prendrefeu
Posts: 8608
Joined: Wed Oct 31, 2007 10:32 pm
Location: Los Feliz, Los Angeles, California
Contact:

by prendrefeu

If the freehub is longer, wouldn't that mean the wheel would need to be re-dished?
And since existing Lightweights do not have true spokes nor nipples, then if the freehub is longer and re-dishing is required, a new wheel is required.

:noidea:
Exp001 || Other projects in the works.

bm0p700f
in the industry
Posts: 3506
Joined: Sat May 12, 2012 7:25 pm
Location: Glermsford, Suffolk U.K
Contact:

by bm0p700f

The new DT swiss hubs (11 speed) have an OLD of 131mm and a longer freehub body.

natiedean24
Posts: 367
Joined: Wed Jun 10, 2009 2:16 pm
Location: Austin, Texas
Contact:

by natiedean24

prendrefeu wrote:If the freehub is longer, wouldn't that mean the wheel would need to be re-dished?

:noidea:


Not necessarily. Each hub design is unique. Depends on if the current hub design has any margin (leftover space) that can be utilized without moving the right flange inwards.

sedluk
Posts: 409
Joined: Mon Sep 07, 2009 3:10 am

by sedluk

I have seen this stuff about re-dishing the spokes. I can’t see how changing a hub body could ever change the spokes. The spokes are connected to the hub, not the hub body. So as far as I can see you cannot change the placement of the spokes by only changing the hub body. Not on Lightweight wheels or on any wheel.

User avatar
btompkins0112
Posts: 2693
Joined: Fri Feb 11, 2011 3:04 am
Location: Mississippi

by btompkins0112

Since most non-shimano hubs require a spacer to run Shimano 10 (to account for Campy 11 compatibility) then one would surmise that the Shimano 11 freehub would be a direct replacement with no other adjustment necessary.

User avatar
prendrefeu
Posts: 8608
Joined: Wed Oct 31, 2007 10:32 pm
Location: Los Feliz, Los Angeles, California
Contact:

by prendrefeu

sedluk wrote:I have seen this stuff about re-dishing the spokes. I can’t see how changing a hub body could ever change the spokes. The spokes are connected to the hub, not the hub body. So as far as I can see you cannot change the placement of the spokes by only changing the hub body. Not on Lightweight wheels or on any wheel.


You've never taken a wheel with a track/ss/threaded hub originally intended for 120mm and re-dished it to run single speed in a frame with different rear spacing in order to achieve proper chainline? That would be an example.
Ask a wheel builder about re-dishing, you'll learn about it. :D
It isn't very common these days with most SS bikes being 120mm rear spaced running hubs set for 120mm and an increase in common chainlines.
Exp001 || Other projects in the works.

User avatar
madcow
Shop Owner
Posts: 3741
Joined: Sun Feb 06, 2005 4:22 pm
Location: Tucson, Az.
Contact:

by madcow

As long as your wheel is based on the DT240 hub you won't have any problem converting it to 11 speed with a new freehub body and an axle end cap. No re-dishing is needed.

sedluk wrote:No one knows, maybe not even Shimano. We won’t know until they are released and the details are decided on.

I have to admit that my first guess would have been they will be compatible. One would assume that they would just use the same hub body and stick one more cog on the cassette like Campy. There was the possibility that the cassette would bend toward the spokes or something but there would most likely be room.

But the latest rumors are that they are truly increasing the size of the hub body. It would be a possibility that DT Swiss could come out with a new hub body. If the rumors are true then this would affect every DT Swiss hub out there including the Lightweight wheels, Reynolds that use DT Swiss, Zipp wheels built with DT Swiss. Every wheel built with DT Swiss. If DT Swiss could come up with a new hub body there still might be an issue with some wheels with the spokes hitting the derailleur.

So back to no one knows.


I have the design drawings for the new body and there is a length change. The finalized specs have been in the hands of some hub manufacturers since December and most companies already have their new freehub body designs done. The holdup is that nobody can get 11 speed cassettes to test their prototype bodies so nobody has been quick to put them into production yet. However expect to see that ramp up pretty quickly now.

prendrefeu wrote:If the freehub is longer, wouldn't that mean the wheel would need to be re-dished?


Not necessarily. On some hubs you have plenty of space on the end cap. So you make the body longer by 1.85mm and the end cap shorter by 1.85mm. It doesn't change the OLN dimensions or the center between the flanges. Hope I'm not just confusing anyone more with my poor explanations.

tommyb
Posts: 495
Joined: Wed Mar 08, 2006 7:50 pm
Location: Bolton
Contact:

by tommyb

:thumbup: exactly what I was hoping to hear, thanks madcow.

coppercook62
Posts: 383
Joined: Mon Nov 15, 2010 7:58 am

by coppercook62

Does anyone know if the Dt Swiss 11 speed rotor and dura ace 9000 cassette will work with Lightweight generation 3 wheels? I did a search didn't really understand it.

jb
Posts: 92
Joined: Mon Mar 06, 2006 8:53 pm
Location: nederland

by jb

Did you contact Carbonsports with this question?
My experience is they will respond fast at emails.

ome rodriguez
Posts: 288
Joined: Fri Feb 24, 2006 9:16 am

by ome rodriguez

I don't think it will work. When a dt 11 speed freehub body is installed, you need to re-dish the wheel which is not possible on lightweights.

BdaGhisallo
Posts: 1838
Joined: Wed Mar 17, 2004 1:38 pm

by BdaGhisallo

Check this image out of the architecture of the DT 240s hub in 10 and 11 sp Shimano configurations.

DT widened the OLN to 131mm with the 11sp setup. This will lessen the amount your LW is out of dish.
Attachments
DT SWISS 240 FLANGE GEO.png

by Weenie


Post Reply
  • Similar Topics
    Replies
    Views
    Last post