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  #11  
Old 02-09-13, 09:17
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laziali laziali is offline
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Originally Posted by Fiemme View Post
The only major advantage of electronic shifting is the auto trim of the front derailleur when the chain rubs. Other than that mechanical works just as well as electronic (Both Campag & Shimano).
Is the extra price of electronic groups worth it when Auto-trim is the only advantage?
I have both, and in my experience in addition to the trim point:

1. Hot days (it gets over 40degrees celsius here), I find mechanical cables seem to stretch a little - at least that is what I am attributing to shifting going out a little.

2. No such thing as cable stretch, loss of "zing" over time.

3. Once set up, Di2 never needs to be tuned again unless crashed.

Here's my own relative ranking from personal experience:

SRAM Red 1st gen: 7/10
SRAM Red current: 8.5/10
DA Di2 1st gen: 8.5/10
DA Mech (current) 9/10
Di2 Ultegra (current) 9.5/10
Di2 11-speed (current) 10/10

Basically, in my experience, the DA mech and 11-speed Di2 are awesome, but Di2 is a little better.

Can't comment on Campag, it's been a while.
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  #12  
Old 02-09-13, 09:25
simo1733 simo1733 is offline
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I wouldn't go electronic unless the battery is internal.
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Old 02-09-13, 10:26
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I won't go Electronic till its wireless like it was back in the good old days with Mavic Mektronic! These wired setups are so 20th Century, might as well go back to a metal lever or flip-flop hub.
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Old 02-10-13, 02:24
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Been riding Shimano Ultegra Di2 for most of last year and to me compared to mechanical its flawless. Autotrim is quite amazing as others have mentioned but for me the real amazing part is Di2's ability to shift under massive loads. Pretty great when you can stand up and climb up a 10% + grade and shift the rear derailleur up or down without any resistance or hesitation and keep your momentum. Very useful when you get to those hills that gradually increase in gradient from 0% all the way up to 10% + in a short period of time.
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Old 02-10-13, 04:24
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Originally Posted by simo1733 View Post
I wouldn't go electronic unless the battery is internal.
Mine is - it's in the seat tube (can also be put in seat post). DA Di2 11-Speed comes with a special expansion sleeve for just this purpose. Charging is via a junction box. It is WAAAY cool Calfee also do an aftermarket.



Here's a story from Cyclingnews a while back http://www.cyclingnews.com/features/...070-sneak-peek

Last edited by laziali; 02-10-13 at 04:42.
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  #16  
Old 02-10-13, 05:08
purcell purcell is offline
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Quote:
Originally Posted by ElChingon View Post
I won't go Electronic till its wireless like it was back in the good old days with Mavic Mektronic! These wired setups are so 20th Century, might as well go back to a metal lever or flip-flop hub.
I would not even consider it until I retire and have enough time to ride my bike as much as I want, and as much as I would have to to justify the price.
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  #17  
Old 02-10-13, 15:30
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This thread needs to be moved.
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  #18  
Old 02-10-13, 21:09
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Fiemme Fiemme is offline
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Quote:
Originally Posted by Unkown View Post
Been riding Shimano Ultegra Di2 for most of last year and to me compared to mechanical its flawless. Autotrim is quite amazing as others have mentioned but for me the real amazing part is Di2's ability to shift under massive loads. Pretty great when you can stand up and climb up a 10% + grade and shift the rear derailleur up or down without any resistance or hesitation and keep your momentum. Very useful when you get to those hills that gradually increase in gradient from 0% all the way up to 10% + in a short period of time.
Gear changing under load should have no baring whether electronic or mechanical shifting. It is all to do with the chain and the pick up points on the cassette.
I use Mechanical Campag, which changes under load with no problem.
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Old 02-10-13, 22:32
purcell purcell is offline
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Originally Posted by Giuseppe Magnetico View Post
This thread needs to be moved.
The shifter's jammed ...
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  #20  
Old 02-11-13, 00:10
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Quote:
Originally Posted by Fiemme View Post
Gear changing under load should have no baring whether electronic or mechanical shifting. It is all to do with the chain and the pick up points on the cassette.
I use Mechanical Campag, which changes under load with no problem.
Well i don't know anybody with Campag but I have friends withe SRAM Red, Rival, and Dura Ace mechanical, and their shifting while standing is far less smooth. Until you try electronic its totally different, because I thought the same thing before as well. Thats just from my experience though, is your shifting in the front derailleur smooth when standing?
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