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Question about current Shimano brifters

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Question about current Shimano brifters

Old 06-19-16, 12:20 PM
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Question about current Shimano brifters

I've been thinking about replacing the 105 brifters on my Felt, partly because they've developed some play and partly just because (I'll move them to my backup Specialized). Anyway, the current crop of Shimano brifters are advertised as being "significantly" improved over the previous generation (at least some of which may be marketing hype, though the product descriptions do indicate some specific things). Anyway, I have some questions for those in the know (My drive train is 10-speed 105 except for an Ultegra rear cassette, i.e., both derailleurs are 105):

- Are the Ultegra ST-6700 brifters compatible with 105 components? I'm leaning toward these over 105's because they claim a 20% shorter, more precise shifting stroke (not advertised for the current 105's)
- If the Ultegra brifters aren't compatible, can I still use the Shimano PTFE SLR cables with the 105's? The reason I ask is because some sites specify the cables as being compatible with Dura-Ace and Ultegra but don't mention 105, though I can't imagine what would make them incompatible.

The bike is a 2011 Felt Z5. I've checked the Shimano compatibility chart and it suggests the Ultegra brifters are compatible with my 105 drivetrain, but just wanted to see if anyone can confirm. Thanks for all replies.
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Old 06-19-16, 12:34 PM
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For me the current generation is much better because of hood shape and how light the front derailleur throw is. Of course you'd have to at least swap derailleurs, cassette and possibly wheels to make that upgrade. 6700 and 5700 are compatible. Having owned both, I couldn't tell the difference in performance
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Old 06-19-16, 01:33 PM
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Do you know why the derailleur swap would be necessary, given that the Shimano compatibility chart doesn't show that? And why wheels? To be clear, I'm talking about the 10-speed brifters, not the 11-speed.

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Old 06-19-16, 01:40 PM
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If you are sticking with 10 speed you shouldn't need to change anything. You said current generation so I thought you may be talking about 11 speed
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Old 06-19-16, 02:01 PM
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By current generation I mean the 10-speed SLR brifters that are advertised as having the 20% shorter shifting throw (on the Ultegra and Dura-Ace versions) and low-friction cables.
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Old 06-19-16, 02:13 PM
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Originally Posted by Stratman351
By current generation I mean the 10-speed SLR brifters that are advertised as having the 20% shorter shifting throw (on the Ultegra and Dura-Ace versions) and low-friction cables.
10 speed is all compatible except for new 4700 Tiagra. But 10 speed Ultegra and DA hasnt been current for 3-4 years
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Old 06-19-16, 02:31 PM
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If you have 5700 now don't expect much from 6700. Very little difference.
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Old 06-19-16, 02:51 PM
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Originally Posted by FeltF2Tarmac
If you have 5700 now don't expect much from 6700. Very little difference.
Agree.

BTW both seem to chew through a RD cable within approx 3000 miles in my experience.
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Old 06-19-16, 02:58 PM
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Originally Posted by FeltF2Tarmac
If you have 5700 now don't expect much from 6700. Very little difference.
^This. I have 2 bikes with 5700, one with 6700 and 1 with 7900 Dura Ace. The 5700 works just fine and I do not think I can tell any difference between 5700 and 6700. The 7900 shifts a little crisper and easier, IMO.

I just put a 6800 group on a friends bike and will replace a 5700 group with it on one of my bikes this week. Now that group is sweet. So just forget 10 speed.

Read this for info on which Shimano parts to spring for in 11 speed: Art's Cyclery Blog » Shimano Road Components ? Where to Spend Your Money
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Old 06-20-16, 06:08 PM
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Okay, so the consensus is 6700 isn't a real upgrade over 5700. However, it turns out my wheels (Williams, I have two rear, one as a spare) can be converted to 11-speed with a simple $45 freehub swap. So I'm going to upgrade to 11-speed. Any significant advantage of 6800 over 5800, apart from weight (which I don't care about)?
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Old 06-20-16, 07:02 PM
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Originally Posted by Stratman351
Okay, so the consensus is 6700 isn't a real upgrade over 5700. However, it turns out my wheels (Williams, I have two rear, one as a spare) can be converted to 11-speed with a simple $45 freehub swap. So I'm going to upgrade to 11-speed. Any significant advantage of 6800 over 5800, apart from weight (which I don't care about)?
you should just swap to tiagra 4700
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Old 06-20-16, 08:25 PM
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Originally Posted by Stratman351
Okay, so the consensus is 6700 isn't a real upgrade over 5700. However, it turns out my wheels (Williams, I have two rear, one as a spare) can be converted to 11-speed with a simple $45 freehub swap. So I'm going to upgrade to 11-speed. Any significant advantage of 6800 over 5800, apart from weight (which I don't care about)?
Having also owned both I also say no difference other then weight I also would say if weight isn't an issue just get 4700. You won't need to change wheel or hub and complete group is under $300. You can probably come close to break even selling the 5700 stuff on ebay
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