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 Post subject: Derrailleur options?
PostPosted: Tue Jan 18, 2005 10:50 pm 
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Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3913
Location: lat 38.9677 lon 77.3366
Looking for something new (Don't need, just want). I am running a DA but want to see if there is anything lighter. I saw some weeks back a picture of a very nice Italian rear derrailluer but I can't find it now. Perhaps some ideas to trick out my current DA? Open to any suggestions, Thanks in advance.


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 Post subject: re
PostPosted: Tue Jan 18, 2005 11:01 pm 
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Joined: Thu Nov 04, 2004 8:35 pm
Posts: 739
Location: Toronto
Carbon fibre rear mech plate... c. 3-6 gram savings... not much, but a start... every gram counts... lol...

http://www.fibre-lyte.co.uk/

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BILL NIKO, YOU WILL NOT EVER BE FORGOTTEN.


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 Post subject: re
Posted: Tue Jan 18, 2005 11:01 pm 


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 Post subject: tiso?
PostPosted: Wed Jan 19, 2005 12:22 am 
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Joined: Thu Apr 08, 2004 6:19 am
Posts: 565
Location: nr Derby, UK
was the italian one a tiso? http://www.tisobike.com/
doesn't look to be much lighter, but it is different.


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 Post subject: tiso I think
PostPosted: Wed Jan 19, 2005 1:48 am 
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Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3913
Location: lat 38.9677 lon 77.3366
Looks like it may be the one. The advertisment I saw listed it at 165 grams but they have several models. Looks very interesting if it works! Anyone used one of these? This is a vanity purchase so I may as well say that it would look sharp with the ZG brakes. I will look into this but in the until then if anyone has any other suggestions please feel free. Thanks again............this is fun!


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 Post subject: Re: Derrailleur options?
PostPosted: Wed Jan 19, 2005 10:25 am 
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Joined: Fri Dec 12, 2003 3:11 pm
Posts: 2509
Location: Oxford - UK
rustychain wrote:
Looking for something new (Don't need, just want). I am running a DA but want to see if there is anything lighter. I saw some weeks back a picture of a very nice Italian rear derrailluer but I can't find it now. Perhaps some ideas to trick out my current DA? Open to any suggestions, Thanks in advance.


Are you running 9 speed or 10 speed? I'm running a DA7800, 10 speed Dura Ace rear mech. The DA7800 will work fine with both a 9 and 10 speed set-up. I'm running mine on a mtb with 9 speed shifters and 9 speed chainrings.

stock weight is 180g. Mine came in at 181g. Once you remove the excess green grease, the weight is an honest 180g. The barrell adjuster weights 4.21g - I took mine off, as my shifters have adjusters on them already.

I have run a Fybre Lyte mech plate - they used my original as a template. The original mech plate weighted 7.3g. The carbon mech plate 5.26g. Not a lot of weight saving (and fairly expensive). Managed to break my CF mech plate.

If you take a stock DA7800, add an SRP kit, use a Alu cable bolt (instead of the SRP Ti one) and remove the adjuster barrell, the weight drops from 180g to 168g. With a CF mech plate you can get the weight down to 166g.

Try a search, Nino tuned his pulley wheels to drop 9g (weight loss from memory). Stock DA7800 pulley wheels weigh 19.1g. Drilling holes in them tunes the weight down. I think Nino bought some cheap Deore (mtb) pulley wheels and drilled into them.

I would think 157 - 158g should be possible for a fully tricked out DA7800!

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 Post subject: re
PostPosted: Wed Jan 19, 2005 10:31 am 
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Joined: Thu Nov 04, 2004 8:35 pm
Posts: 739
Location: Toronto
Nice post Tippster... time to do some tuning... :D

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 Post subject:
PostPosted: Wed Jan 19, 2005 7:49 pm 
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Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3913
Location: lat 38.9677 lon 77.3366
I'm running a DA7800 with a 9speed. I like what you have suggested. How long have you been riding this setup and does it have any negatives besides you CF plate breaking (think I'll pass on that one).
I wish we could talk those Zero Gravity guys into producing something svelt for us.


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 Post subject:
Posted: Wed Jan 19, 2005 7:49 pm 


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 Post subject:
PostPosted: Thu Jan 20, 2005 11:46 am 
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Joined: Fri Dec 12, 2003 3:11 pm
Posts: 2509
Location: Oxford - UK
rustychain wrote:
I'm running a DA7800 with a 9speed. I like what you have suggested. How long have you been riding this setup and does it have any negatives besides you CF plate breaking (think I'll pass on that one).
I wish we could talk those Zero Gravity guys into producing something svelt for us.


The mech plate is the only upgrade I'd advise against. 2g saving for the cost seems excessive even to me. And you are weakening the mech at the same time.

My mech, from memory has been in use for 6 months, so approx 3.5k road miles and 100 - 200 off-road miles.

I've have no problems from it so far. Only exception being a single Alu cable bolt I snapped through over tightening.

_________________
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