Thank you for buying via links and ads on this site,
which earn me advertising fees or commissions.
As an Amazon Associate I earn from qualifying purchases.

Other World Computing...
B&H Photo...
Amazon
As an Amazon Associate I earn from qualifying purchases.
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$3498 $3498
SAVE $click

$3699 $1299
SAVE $2400

$1000 $700
SAVE $300

$3899 $1499
SAVE $2400

$748 $648
SAVE $100

$2999 $1999
SAVE $1000

$1699 $999
SAVE $700

$1698 $1398
SAVE $300

$4499 $3499
SAVE $1000

$1399 $1049
SAVE $350

$1149 $799
SAVE $350

$1399 $1049
SAVE $350

$1498 $1198
SAVE $300

$2797 $2597
SAVE $200

$280 $250
SAVE $30

$1699 $1299
SAVE $400

$8399 $7599
SAVE $800

$899 $799
SAVE $100

$1699 $1299
SAVE $400

Upgrade the memory of your 2018 Mac mini up to 64GB
OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!

Shimano Dura-Ace Di2 Electronic Shifters Experience

Last updated 2011-11-23 - Send Feedback
Related: bicycle power meter, gear, Road Bikes, Shimano, SRM
@AMAZON
Shimano DuraAce DI2 rear derailleur

On a mix of road bikes and one cross bike, I’ve ridden Shimano DuraAce 7800, Shimano DuraAce DI2 7900, and SRAM Red. SRAM Red is popular because of cost, but it is not in the same league.

See pricing on Shimano DuraAce DI2 @AMAZON.

The Shimano DuraAce DI2 shifting performance is outstanding. It stands heads and shoulders above regular DuraAce, especially for front chainring shifts under high power input. The fantastic shifting performance means that I shift into my big ring frequently, even on Old La Honda.

Shimano DuraAce Di2 shifts fast and correctly every time, and I mean every time and it does so even under high wattage loads also— I do not need to back off power in order to shift. Di2 is one of the best technologies to emerge in years, and I’ll never go back to mechanical shifters. Even better, Di2 is coming into its own on mountain bikes, with some 3rd-party derailleur parts starting to appear in late 2011 that allow Di2 to be used on MTB.

 

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

Shimano DuraAce Di2 shifting performance with non-Shimano chainrings

I’m hearing from a source I trust that using Shimano DuraAce DI2 @AMAZON makes sense with Shimano DuraAce chainrings, that using alternative chainrings might not be such a great idea, because the rings are flexible, and this can cause less than ideal shifting.

In particular, that impressive ZED-2 crankset on the Look 695 SR with the Look chainrings might not shift as well with DI2 as when using Shimano DuraAce chainrings. There are two reasons for this:

  • Shimano chainrings are about as in-round as can be had; other brands can be out-of-round slightly (indeed, an SRM-modified crankset might not be as good as straight DuraAce).
  • Shimano chainrings are ultra stiff. Other chainrings might flex under the high torque shifting of the Shimano DI2 electronic shifters.

Both of these factors can mean shifting performance below that of which Shimano DuraAce DI2 is capable. It just doesn’t make sense to me to invest in DI2 and then use other parts that might not function as well.

In addition, the way the derailleur attaches to the frame can also matter; the high torque of the DI2 shifting puts a lot of stress on the attachment point. So a good solid braze-on is fine (Trek and LOOK both do this), but other mounting approaches might be sub-optimal.

I’m personally not willing to sacrifice any of the phenomenal DI2 shifting performance, so I’m sticking with Shimano parts.

@AMAZON
Shimano DuraAce DI2 rear derailleur, front derailleur
Organic Lab Tested Full Spectrum CBD

20% off every day with coupon code diglloyd20 at NuLeafNaturals.com

Updated formula with more CBD!
100% organic non-GMO, no additives or preservatives, lab tested for purity and quality.
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
OWC Envoy Express

World’s first Thunderbolt 3 M.2 NVME SSD enclosure.

Super fast, bus-powered, 3.3 oz, DIY easy, rugged and compact!


See also OWC Express 4M2
√ No more slow and noisy hard drives!
OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!
View all handpicked deals...

Canon EOS 5DS DSLR Camera (Body Only)
$3699 $1299
SAVE $2400

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__