Ultegra 6800 Chainset and 6850 chainsets are the same right?

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rodneycc
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Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby rodneycc » Wed Aug 17, 2016 4:25 pm

Dumb question time. The Ultegra 6800 Chainset and the 6850 chainsets are exactly same aren't they? I'm not missing something am I?

i.e
http://www.probikekit.com.au/bicycle-cr ... n=10791325

http://www.probikekit.com.au/bicycle-cr ... 33891.html
Last edited by rodneycc on Wed Aug 17, 2016 4:35 pm, edited 1 time in total.
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FXST01
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby FXST01 » Wed Aug 17, 2016 4:31 pm

Just the sizes 6850 (50-34 172.5 & 175) v 6800 (52-36 170, 172.5 & 175)
Image

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rodneycc
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby rodneycc » Wed Aug 17, 2016 4:40 pm

yeah I mean besides the obvious sizes. I'm just not sure why its listed as a 6850 chainset different to the 6800 (actually I always thought the crank model was 6850). ??

So are the compacts known as 6850s ? Is that what it is...
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biker jk
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby biker jk » Wed Aug 17, 2016 5:34 pm

rodneycc wrote:
So are the compacts known as 6850s ? Is that what it is...


Yes.

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cyclotaur
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby cyclotaur » Wed Aug 17, 2016 5:44 pm

The **00 and **50 designations were important when they had different BCDs, but not so much now they both have the same 4 arm, 110BCD design. Only difference is in chainring selection.
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Duck!
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby Duck! » Wed Aug 17, 2016 9:00 pm

cyclotaur wrote:The **00 and **50 designations were important when they had different BCDs, but not so much now they both have the same 4 arm, 110BCD design. Only difference is in chainring selection.

Yup. There is no such thing as FC-6850, for precisely this reason - unlike previous generations, the crank itself is the same for all chainring combinations. It's not the first time the online mobs have used non-existent or patently incorrect model numbers for things.
I had a thought, but it got run over as it crossed my mind.

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rodneycc
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Re: Ultegra 6800 Chainset and 6850 chainsets are the same right?

Postby rodneycc » Wed Aug 17, 2016 9:31 pm

Great - thanks all.
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