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PostPosted: Wed Feb 29, 2012 4:32 pm 
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Posts: 124
thisisatest wrote:
. yes, shimano is making a bb30 crank. and pinarello is making a bb30 dogma.
the crank has been confirmed by a shimano guy.


First tme i have heard of this? Anyone else know more about the crank set?


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PostPosted: Wed Feb 29, 2012 8:33 pm 
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Posts: 642
i'll be very surprised if theres a BB30 shimano cranks, everything says otherwise.


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PostPosted: Wed Feb 29, 2012 8:41 pm 
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Posts: 348
Location: TN
thisisatest wrote:
the dogma with da9000 has a bb30 crank. yes, shimano is making a bb30 crank. and pinarello is making a bb30 dogma.
the crank has been confirmed by a shimano guy. probably some news release about it soon, or he wouldnt have given it up so easily.
hint: on the rear derailleur pic, zoom in on the crank/bb area. big bb, but not wide, NO EXTERNAL CUPS, spider is essentially inboard of the outer ring due to all the interior space.


Not so sure I agree with you on this one. Looks like there could be some room for an external BB on there. Also, if that's the new crank - which is supposed to be 4-arm - the arms of the spider don't appear to be 90deg apart - they look very similar to existing cranks.

Thoughts?


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PostPosted: Thu Mar 01, 2012 2:00 am 
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Posts: 828
cool new toy for di2 groups for 2013

shimano leads the rest follow...


Image

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PostPosted: Thu Mar 01, 2012 3:49 am 
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Posts: 1980
Location: NoVA/DC
mgordon wrote:
Not so sure I agree with you on this one. Looks like there could be some room for an external BB on there. Also, if that's the new crank - which is supposed to be 4-arm - the arms of the spider don't appear to be 90deg apart - they look very similar to existing cranks.

Thoughts?

the shimano guy kinda retracted. he now says he cannot say if it is bb30 or not. which to me means it is, or he wouldve stuck to the line that they would never make a bb30 crank. i just hope it's not some convoluted italian version of bb30, mixing imperial measurements and metric (like 68mm shell x 1-3/16"diameter spindle).
having four arms does not mean the arms have to be 90deg apart. could be like an x-wing fighter.
the arms definitely sink in as they approach the bb spindle. the outer ring is actually dished outward to the teeth. current cranks have a dome shape. current spider surrounds and cups over the outboard bearing. the new crank's spider also has a much larger cross section on each arm.
In the end, it might not be bb30, but the overall design is the same as a bb30 system: larger spindle, narrow 68mm (70mm?) shell, pressed in large bearings.
Attachment:
dura ace 9000 resize.jpg
dura ace 9000 resize.jpg [ 90.27 KiB | Viewed 2898 times ]


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PostPosted: Thu Mar 01, 2012 3:53 am 
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Location: NoVA/DC
compare that photo to this one here
Image


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PostPosted: Thu Mar 01, 2012 4:50 am 
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Posts: 448
Location: San Francisco, CA
spartan wrote:
cool new toy for di2 groups for 2013

shimano leads the rest follow...


Image


Good lord...talk about a gadget I never want on my bike(s).

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PostPosted: Thu Mar 01, 2012 5:42 am 
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Posts: 1402
That's for Alfine though, not DA or Ultegra.

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PostPosted: Thu Mar 01, 2012 5:51 am 
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Posts: 1682
11 speed wheels mentioned. No descriptions of freehub body length.

http://www.bikeradar.com/news/article/s ... look-33204


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PostPosted: Thu Mar 01, 2012 8:58 am 
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Joined: Mon Dec 21, 2009 6:00 am
Posts: 452
Location: Bay Area, CA
Ypsylon wrote:
That's for Alfine though, not DA or Ultegra.


It specifically mentions that it's in development for Ultegra Di2 (and presumably DA Di2 when it gets updated cabling):

"Shimano are working on a digital display for both Alfine and Ultegra Di2 which will show gear and battery life."
http://www.bikeradar.com/news/article/s ... ures-33229

thisisatest, I'm not unconvinced what you're seeing isn't some trickery of light. It's hard to tell, but I can't imagine someone missing something as major as a crank revision.

What I'm always blown away by is that in a world with a camera seemingly attached to nearly every electronic device, and prototype products out and about in public, we end up with three! crappy pictures :evil:


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PostPosted: Thu Mar 01, 2012 7:53 pm 
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Joined: Wed Nov 05, 2003 7:27 pm
Posts: 2510
Location: Manchester, UK
.


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PostPosted: Thu Apr 05, 2012 11:25 am 
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Joined: Sun Sep 05, 2010 9:31 am
Posts: 164
Location: Belgian border
CarbonSportsGmbH on Shimano 11s rear spacing:
CarbonSportsGmbH wrote:
As far as we know (we have sample hubs and freehub-bodies from DT in house), Shimano11s will go to 131mm. If you mount an 11s freehub on an originally 10s rear wheel it will be pushed 0.5mm off center.
I could imagine there will be a different plug for the left end of the axle to add another mm - should be no problem for the frames and the wheels stay in the center. But we're still working on that issue, together with DT.

http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=100549&start=30#p864084


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PostPosted: Thu Apr 05, 2012 4:29 pm 
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Joined: Tue Mar 29, 2005 12:20 am
Posts: 64
interesting, where did you get this data?


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PostPosted: Thu Apr 05, 2012 7:47 pm 
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Posts: 2832
Location: Boulder, Colorado
thisisatest wrote:
mgordon wrote:
Not so sure I agree with you on this one. Looks like there could be some room for an external BB on there. Also, if that's the new crank - which is supposed to be 4-arm - the arms of the spider don't appear to be 90deg apart - they look very similar to existing cranks.

Thoughts?

the shimano guy kinda retracted. he now says he cannot say if it is bb30 or not. which to me means it is, or he wouldve stuck to the line that they would never make a bb30 crank. i just hope it's not some convoluted italian version of bb30, mixing imperial measurements and metric (like 68mm shell x 1-3/16"diameter spindle).
having four arms does not mean the arms have to be 90deg apart. could be like an x-wing fighter.
the arms definitely sink in as they approach the bb spindle. the outer ring is actually dished outward to the teeth. current cranks have a dome shape. current spider surrounds and cups over the outboard bearing. the new crank's spider also has a much larger cross section on each arm.
In the end, it might not be bb30, but the overall design is the same as a bb30 system: larger spindle, narrow 68mm (70mm?) shell, pressed in large bearings.
Attachment:
dura ace 9000 resize.jpg



Based on that picture it's entirely possible that the frame is BB30 and that the team just switched the kind of adapter that they are using - going from a frame adapter to allow a threaded BB cup to something like the Wheels Mfg axel shim...

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PostPosted: Fri Apr 06, 2012 2:21 am 
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Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
look at the bb shell. the spider goes right up against it. the spider is relatively flat, does not "dome" out to make room for bearings or external adapters.
when it is all revealed, i will scream "I told you so" at the top of my lungs, from the highest mountain (on the internet).


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