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 Post subject: Sram Red 137g
PostPosted: Tue Nov 11, 2008 12:18 pm 
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Joined: Wed Jan 12, 2005 6:29 pm
Posts: 200
Location: Oslo, Norway
I replaced the stock pulleys on my Red RD with Extralite, and it brought the weight down to 138g. After replacing the Ti cable clamping bolt with alu, it was 137g.


Ole.


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 Post subject:
PostPosted: Tue Nov 11, 2008 12:55 pm 
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Joined: Fri Jul 18, 2008 8:25 pm
Posts: 210
Location: UK
rward325 wrote:
It's a slow day at the office:

RD Carbon Fiber 120g $1149.90 $9.52 per gram
Red 153g $299.99 $1.60 per gram
Record 187g $279.99 $1.49 per gram
DA 180g $159.99 $0.89 per gram

I know there is a price to pay for weight savings and I can live with that. But I think I just found my limit.


Seen the date of the post... But surely rward325 logic is not correct. Taking ultegra as benchmark the $/gram saving would be:
Ultegra 210
RD Carbon 120 1149.9 $12.8
Red 153 299.99 $5.3
Record 187 279.99 $12.2
DA 180 159.99 $5.3
Interestingly DA & Red identical and Record as much as a rip off as Lightweight!!! :D


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 Post subject:
Posted: Tue Nov 11, 2008 12:55 pm 


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 Post subject:
PostPosted: Tue Nov 11, 2008 4:28 pm 
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Joined: Tue Aug 12, 2008 2:22 pm
Posts: 567
Location: Berkeley, Ca
dynaserve wrote:
rward325 wrote:
It's a slow day at the office:

RD Carbon Fiber 120g $1149.90 $9.52 per gram
Red 153g $299.99 $1.60 per gram
Record 187g $279.99 $1.49 per gram
DA 180g $159.99 $0.89 per gram

I know there is a price to pay for weight savings and I can live with that. But I think I just found my limit.


Seen the date of the post... But surely rward325 logic is not correct. Taking ultegra as benchmark the $/gram saving would be:
Ultegra 210
RD Carbon 120 1149.9 $12.8
Red 153 299.99 $5.3
Record 187 279.99 $12.2
DA 180 159.99 $5.3
Interestingly DA & Red identical and Record as much as a rip off as Lightweight!!! :D


Your logic is also flawed since you have to take into consideration the cost difference as well, not only the weight difference. If people gave out free Ultegra I'd be ok with that though.

Ultegra...............210......109.99
RD Carbon........-90......+1039.91........$11.55
Red..................-57......+190.00.........$3.33
Record..............-23......+170.............$7.39
DA...................-30.......+50..............$1.67

Being unable to use tab instead of a ton of spaces or in this case periods in these posts is quite frustrating...


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 Post subject:
PostPosted: Tue Nov 11, 2008 5:20 pm 
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Posts: 3280
Location: People's Republic of Boulder
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I haven't even touched the cable tension bolt yet. ~6-8 grams.

Red RD- ebay $220 (minus 25% cash back with live search)= $165
dark_albert pulleys and plate- $100= $265 for a 128 gram RD

Thats $2.01/gr compared to LWs $1039/gr

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 Post subject:
PostPosted: Tue Nov 11, 2008 5:22 pm 
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 Post subject:
PostPosted: Tue Nov 11, 2008 5:32 pm 
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Joined: Sat Jan 05, 2008 5:08 pm
Posts: 688
Location: Wichita Falls
shite thats good...

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 Post subject:
PostPosted: Tue Nov 11, 2008 5:57 pm 
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Location: Tucson, Az.
Boonens 114gram Dura Ace rear: http://fairwheelbikes.com/forum/viewtop ... f=6&t=5718

Boonens 119gram Sram rear: http://fairwheelbikes.com/forum/viewtop ... f=6&t=5621

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 Post subject:
PostPosted: Tue Nov 11, 2008 7:40 pm 
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Joined: Wed Sep 26, 2007 1:57 pm
Posts: 7311
Location: San Francisco, CA
Szczuldo wrote:
Your logic is also flawed since you have to take into consideration the cost difference as well, not only the weight difference. If people gave out free Ultegra I'd be ok with that though.

Ultegra...............210......109.99
RD Carbon........-90......+1039.91........$11.55
Red..................-57......+190.00.........$3.33
Record..............-23......+170.............$7.39
DA...................-30.......+50..............$1.67

Being unable to use tab instead of a ton of spaces or in this case periods in these posts is quite frustrating...


Your logic is flawed because $/gram should be relative to the next cheaper/lighter option, not versus Ultegra. For example, given two derailleurs, one $10 more and 5 grams heavier, the second would be a terrible choice, even if relative to Ultegra it was a similar $/gram difference, because it's incremental $/gram is negative.

That said, relative to Red, the LW becomes $25.76/gram. Outrageous? I agree, but within a factor of two the number you get from the Trek Madone Black->Red series upgrade, which is popular. (Pez says there's a quality difference in this upgrade, as well, however)


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 Post subject:
PostPosted: Tue Nov 11, 2008 7:58 pm 
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Location: Denmark
Principia wrote:


Very nice looking, maybe my Impulse need one :D

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 Post subject:
PostPosted: Tue Nov 11, 2008 8:47 pm 
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Posts: 225
madcow wrote:

:shock: .... :lol:


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 Post subject:
PostPosted: Wed Nov 12, 2008 12:45 am 
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Joined: Thu Jul 24, 2008 12:50 am
Posts: 64
Location: FAR EAST
I got 1 for my DA Gruppo about a year+ ago and the shifting is way
to sensitive. Needed to fine tune after every long ride. It looks
great but would prefer the great to come with effieciency also, its now
sitting in a box.

Apparently the new ones are Campy and Shm compatible now but I
don't think they'll work with DA 7900 or Campy 11 spd.


Attachments:
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LightWeight Rr D.jpg [ 58.24 KiB | Viewed 3198 times ]

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 Post subject:
PostPosted: Wed Nov 12, 2008 12:51 am 
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Joined: Thu Nov 10, 2005 5:31 pm
Posts: 4411
Location: Surrey B.C. Canada
coloclimber wrote:
Image
I haven't even touched the cable tension bolt yet. ~6-8 grams.

Red RD- ebay $220 (minus 25% cash back with live search)= $165
dark_albert pulleys and plate- $100= $265 for a 128 gram RD

Thats $2.01/gr compared to LWs $1039/gr


I have to agree that I think the SRAM RED is the best for the money option if you can get one for just over $200 like I have done.

All I have done with my SRAM RED is put on a pair of Fibre-Lite pulleys and the weight went from 145g stock down to 131g but I also changed out the stock pinch bolt to a black anodized that was still a bit lighter.

I have to agree with Colo that if I can get the cable tension bolt sorted out that I could get this down to about 120 if I sorted this out and picked up a Dark Albert inner plate. I will see if Fibre-Lyte have a carbon outer plate for Red yet as I have some other parts on order from them.

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Cervelo SLC 5890g/12.98 lbs


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 Post subject:
PostPosted: Wed Nov 12, 2008 1:00 am 
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Joined: Thu Nov 10, 2005 5:31 pm
Posts: 4411
Location: Surrey B.C. Canada
Does anytong on here have a good suggestion on how to eliminate the rear derailleur cable tension bolt as Sram has made it a beast to tune. I have heard that you have to drill and tap it too a bigger bolt then you can drill and tap that to use a lighter aluminum bolt but is there a better way of doing this :?:

Cheers.

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 Post subject:
PostPosted: Wed Nov 12, 2008 1:41 am 
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Joined: Thu May 04, 2006 4:43 pm
Posts: 4994
Location: Wherever there's a mountain beckoning to be climbed
Regarding LW RD, Holiday wrote:
Needed to fine tune after every long ride. It looks
great but would prefer the great to come with effieciency also, its now
sitting in a box.
Hey, what do you expect for 750 euros? Picky, picky. :roll:


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 Post subject:
Posted: Wed Nov 12, 2008 1:41 am 


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 Post subject:
PostPosted: Wed Nov 12, 2008 8:28 am 
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Joined: Sat Jun 25, 2005 11:16 am
Posts: 226
Location: Germany
tuned version from s.roth
http://www.light-bikes.de/website/new/2 ... t-rd-tuned

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Dura Ace 7800 black ultralight - 107.3g! ;)
http://www.light-bikes.de/website/new/2 ... ultralight

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Campa Record black 119.6g

Image

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