On 02/27/2017 07:00 PM, Brewster Fong wrote:
On Monday, February 27, 2017 at 3:49:03 PM UTC-8, Patrick Moore wrote:
Continuing this aside: what exactly is the purpose of electric
shifting? I assume there is some benefit to someone besides the
seller, since someone or other has been trying to make it work
since the mid or late '90s. Does it make mis-shifts, which I
assume (right? wrong?) are more common with cables the smaller the
gaps between cogs, less likely?
What's the purpose of e-shifting?! Are you crazy?! Of course, its to
sell more bikes! Come on, get with it!
But seriously, the latest e-shifting is fast and reliable.
So too is cable shifting.
Unlike the old Mavic Zap stuff from the 90s, this stuff really works.
There's basically tiny computers controlling the shifting. Most people
I know have Shimano ultegra di2 and love it. But the one guy with Sram
etap loves it too and in fact, upgraded his second bike to it. The
best thing about etap is there's no wires. So if you like your bike to
look like a track bike with only brakes cables, then this is the
system for you! In contrast, Shimano di2 does require wires, but many
frames, especially carbon ones, are being designed to hide the battery
and control boxes. Add in a Garmin to track everything and being able
to upload your latest time and you're set!
One interesting thing that I notice is you see with all these guys
with major cross chain where you're in the big cog in the back and big
chainring at the same time. Further, with 11 speeds, you can get 50/34
chainrings and 11-32 in the rear. So, you see guys riding in their 50t
big ring and 32t rear cog, with no noise or protest from the system!
With di2, there's no rubbing either as the FD "automatically" shifts
to avoid any noise. Now is it good for the life of the chain? Who
cares, everything is done effortlessly!
You've neglected to mention, with integrated brake/shift levers you're
limited in how much adjustment you can make of the front derailleur to
avoid rubbing (unlike friction shifters, where you can position the FD
anywhere you like). So that gives back something that was lost when
they went to STI.
If you don't have guys in your group with e-shifting, shame on you!
No, seriously, go down to a LBS and check it out. Go to the big boys -
Trek/Specialized/C'dale/Giant. You'll see the latest! The big thing in
my group that got everyone drooling is etap with hydraulic disc
brakes. Simply amazing....Good Luck!
Other than trimming the front derailleur, you haven't give a genuine
reason to do so. The fact that it works isn't enough: cable shifting
works too, and costs thousands less without requiring charging a battery.
Being "new" is insufficient; you really need to show "better." And that
you haven't done.
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