Shimano 5600 105 to 7900 Dura-Ace

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Mr_Mojo
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Shimano 5600 105 to 7900 Dura-Ace

Postby Mr_Mojo » Fri Jan 18, 2013 08:53 am

I curently have Shimano 5600 105 on my new Titanium Dolan bike and looking at upgrading to Shimano 7900 Dura-Ace. The 105 groupset is about 2.5 years old and still working ok but looking quite scruffy now, it was transfered onto the new Dolan frame but is letting it down.

As the new 11 speed 9000 group is out I'm able to pick up the older 7900 group for about £1100 but my question is will I notice a big difference compared to the 5600 group? Will I be better with Ultegra? Or just make do with the 105? If there is a big difference what is it?

nochekmate
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby nochekmate » Fri Jan 18, 2013 09:52 am

Although the DA7900 is a top end groupset, you will ask yourself was it all worth it because the upgrade feel will not necessarily be that obvious. Weight is the major difference and of course if your 105 is 5600, you'll no longer have to contend with the Shimano washing line gear cables.
Last edited by nochekmate on Fri Jan 18, 2013 12:04 pm, edited 1 time in total.

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antfly
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby antfly » Fri Jan 18, 2013 10:42 am

Depends if you enjoy spending money or not, it will be expensive to replace parts like cassettes. Ultegra is good enough, and the 6700 chainset and front mech is a very big improvement on the previous version.
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Mr_Mojo
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby Mr_Mojo » Fri Jan 18, 2013 12:17 pm

I like the thought of upgrading just to get away from the external shifter cables, never really liked them.

Just been looking at 6700 Ultegra group prices and it's about £500 cheaper! I assume there isn't a massive noticeable difference between DA and Ultegra? Probably the increase in weight would be the biggest. Do the shifters have the same action and feel?

nochekmate
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby nochekmate » Fri Jan 18, 2013 12:20 pm

Mr_Mojo wrote:I like the thought of upgrading just to get away from the external shifter cables, never really liked them.

Just been looking at 6700 Ultegra group prices and it's about £500 cheaper! I assume there isn't a massive noticeable difference between DA and Ultegra? Probably the increase in weight would be the biggest. Not enough to be noticed on the ride Do the shifters have the same action and feel? Not currently using Ultegra 6700 or DA7900 but I think so, a bit of carbon bling on the DA shifters


Not worth anything like £500 extra IMO

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smidsy
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby smidsy » Fri Jan 18, 2013 12:50 pm

The more speeds the thinner the components.

Not only are you paying a premium initially to purchase it, it will likely need more money more often in maintaining it too.
Yellow is the new Black.

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ugo.santalucia
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby ugo.santalucia » Fri Jan 18, 2013 12:53 pm

Smoother shifting and if you look after the group set, it should last longer, especially the STI levers.
If you don't look after it, it will last just as long, the shifting will become just as dull and in practice you will waste your money
So, it's down to how much TLC you are willing to apply

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PeteMadoc
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby PeteMadoc » Fri Jan 18, 2013 14:35 pm

Dura ace 7900 and Ultegra 6700 seem to be almost identical to me.

If your shifting is smooth on your current 105 set up I'd probably leave it for now, maybe look at some fancy wheels if you want to spend some money.

With dura ace 9000 now out I would expect a new ultegra to come out within the year and if you still want to upgrade that's what I'd go for.

I changed my race bike from 105 5600 to dura ace 7900 about a year ago. I have to say I was a little underwhelmed. You do notice in a race situation that shifting is very quick and works well under load but I think I prefer the hood shape on my old 105.

Glasgowbhoy
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby Glasgowbhoy » Fri Jan 18, 2013 16:00 pm

With all this in mind, what parts of 7900 are going to be compatible with 9000 (11 speed) ? Will the shifters and mechs work with an 11 speed cassette?

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PeteMadoc
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby PeteMadoc » Fri Jan 18, 2013 16:06 pm

Glasgowbhoy wrote:With all this in mind, what parts of 7900 are going to be compatible with 9000 (11 speed) ? Will the shifters and mechs work with an 11 speed cassette?


No

not properly anyway and as I understand it 9000 requires a new hub type to fit an 11sp cassette

Glasgowbhoy
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby Glasgowbhoy » Fri Jan 18, 2013 16:20 pm

PeteMadoc wrote:
Glasgowbhoy wrote:With all this in mind, what parts of 7900 are going to be compatible with 9000 (11 speed) ? Will the shifters and mechs work with an 11 speed cassette?


No

not properly anyway and as I understand it 9000 requires a new hub type to fit an 11sp cassette


And that goes in reverse then? Having a 9000 set up the ten speed cassette wont shift properly should you have other 10 speed set ups?

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PeteMadoc
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby PeteMadoc » Fri Jan 18, 2013 16:33 pm

As a rule you can't mix shifters and mechs and cassettes of different speeds (although a front mech would most likely be fine).

It looks like Shimano are going to move everything to 11 speed over the coming years so expect ultegra and 105 to follow suit. In 3 years all your 10 speed stuff will be out of date. Sounds like a marketing ploy to make us all buy new stuff. Clever eh

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smidsy
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Re: Shimano 5600 105 to 7900 Dura-Ace

Postby smidsy » Fri Jan 18, 2013 16:39 pm

I thought exactly the same when the went from 9 speed to 10 speed.

Still prefer my 9 speed.
Yellow is the new Black.


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