upgrade/downgrade wheels to/from 11 speed

Malte

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Sep 26, 2011
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Tokyo
Hi guys,

thinking about buying a new bike with the new Ultegra 6800 (11-speed). I wounder if I can still use my 2012 Cosmic Carbon's and fit 11 cassette on those?
Also can I fit 10-speed cassette (6700) on wheels that have Ultegra 6800 Hubs?

Cheers,
Malte
 

kiwisimon

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Dec 14, 2006
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I'm still riding one or nine speeds on the rear, way over my head but 2012 Cosmic Carbon's sound way too fast. Couldn't you just pedal faster? ;)
 
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Malte

Maximum Pace
Sep 26, 2011
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I'm still riding one or nine speeds on the rear, way over my head but 2012 Cosmic Carbon's sound way too fast. Couldn't you just pedal faster? ;)

Not about speed, just the question: Should I buy 6700 or 6800. I don't need 11 speed but I don't want to buy the old group-set if I can get the new. So being able to use the wheels (new and old) on both bikes (by e.g. changing cassette and spacers) is my requirement.
 

saibot

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May 29, 2012
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Yes, should be no problem. You current mavic freehub run a spacer behind the shimano cassette right?

I got a mavic r-sys wheel to use with my shimano 11-speed while my DA wheel was being checked for some freewheel problems.
 

kiwisimon

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Dec 14, 2006
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Malte

Maximum Pace
Sep 26, 2011
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Tokyo
Thanks, I also confirmed that with the shop. The new hubs are 8,9,10,11 speed compatible.
I also learned that the 6700 Cranks are not compatible with 6800 drive-train anymore.
 

AlanW

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Jan 30, 2007
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You are lucky. Of the four wheelsets on Naomi's and my bikes, only one can be converted to 11s. Looks like I'll be keeping 10s for a while.
 

joewein

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Oct 25, 2011
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