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 Post subject: 105 5800 with weights
PostPosted: Tue Aug 05, 2014 5:17 pm 
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Joined: Sun Aug 28, 2011 3:58 pm
Posts: 38
Putting 105 5800 on a new build.

New chainset (175mm 50/34T) is very nice - mostly a kind of matt/frosted black with a shiny bit along the middle of the cranks with the logo.

Cassette is 11 28

No weight for BB as I'm using the 6800 one already on bike :(

https://www.flickr.com/photos/13647127@N04/sets/72157645790442968/

Will post pics of build later :)


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PostPosted: Tue Aug 05, 2014 7:00 pm 
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Joined: Mon Mar 12, 2012 4:43 pm
Posts: 241
Thank you for posting the weights. I got to try 5800 for a couple of rides, and I was left feeling very impressed.


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Posted: Tue Aug 05, 2014 7:00 pm 


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PostPosted: Tue Aug 05, 2014 7:23 pm 
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Joined: Sat May 12, 2007 3:40 am
Posts: 417
Location: Triange, NC
Good job with the pictures and weights. The group looks very nice.


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PostPosted: Tue Aug 05, 2014 8:49 pm 
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Joined: Tue Oct 23, 2012 10:52 pm
Posts: 136
Based on those weights it looks like I'll be selling the 5800 grouppo from my new bike...Those brakes and shifters are absolute boat anchors.

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PostPosted: Tue Aug 05, 2014 8:56 pm 
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Joined: Tue Jan 07, 2014 9:20 am
Posts: 112
Edit, so I tallied it up plus looked up the chain weight (257g) which gets us to 2578g. I run a Praxis BB adapter so I'm leaving out the BB weight. That's ~260g more than 6800. I plan to run an 11-28 Force 22 cassette (I prefer the ratios) which will save me another 36g. Can't justify spending ~$230 more to save 260g.


Last edited by dunbar42 on Tue Aug 05, 2014 9:27 pm, edited 2 times in total.

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PostPosted: Tue Aug 05, 2014 9:02 pm 
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Taking an educated guess on the chain and BB
fd 90
cassette 277
r. shifter 245
l. shifter 245
rd 228
brake 193
brake 197
crankset 746
chain 275 guess
bb 100 guess
2596

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PostPosted: Tue Aug 05, 2014 10:23 pm 
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Joined: Sun Jun 01, 2014 1:56 am
Posts: 35
Swap out the heavy brakes and crankset and it's really not that bad. Strongly considering Shimano again if the SRAM 11-speed stuff has reliability issues (a la force and rival 10-speed rear shifters).


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PostPosted: Tue Aug 05, 2014 10:45 pm 
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Joined: Tue Jan 07, 2014 9:20 am
Posts: 112
supermidget wrote:
Swap out the heavy brakes and crankset and it's really not that bad. Strongly considering Shimano again if the SRAM 11-speed stuff has reliability issues (a la force and rival 10-speed rear shifters).


Problem is 6800 is only ~$225 more so you start eating into your cost savings by upgrading parts. Also, the colors won't match between the two (6800 is a grayish color vs. black or silver on 5800.) Might be worth it to get the whole 6800 group set if weight or aesthetics is important. The new 4-arm 5800 crank is only 50g heavier than 6800. Same 50g difference between the brake calipers. I'm getting the 6800 weights from the link below. I'm already running a 6800 front brake (which I'll leave on) so I'm thinking the actual weight difference in my case will be ~230g.

http://www.totalcycling.com/en/Componen ... /cc-8.aspx


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Posted: Tue Aug 05, 2014 10:45 pm 


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PostPosted: Sat Aug 09, 2014 7:15 pm 
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Joined: Tue Jan 07, 2014 9:20 am
Posts: 112
Some more data points:

CS-5800 11-32T Cassette - 312.5g
CN-HG600 Chain (uncut) - 262g
SM-BBR60 BB (english) - 81g

Got my 5800 groupset from Ribble in 4 days here in Los Angeles!


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