Thank you for purchasing through links and ads on this site.
OWC / MacSales.com...
diglloyd Deal Finder...
Buy other stuff at Amazon.com...
Handpicked deals...
$1799 $1299
SAVE $500

$719 $719
SAVE $0

$150 $150
SAVE $0

$795 $344
SAVE $451

$1997 $897
SAVE $1100

$1100 $900
SAVE $200

$348 $278
SAVE $70

$3099 $2499
SAVE $600

$2099 $1799
SAVE $300

$275 $275
SAVE $0

$699 $499
SAVE $200

$1699 $1299
SAVE $400

$2999 $2599
SAVE $400

$1699 $1443
SAVE $256

$2798 $2498
SAVE $300

$2399 $2199
SAVE $200

$3798 $1898
SAVE $1900

$2840 $2498
SAVE $342

$2497 $1997
SAVE $500

$2498 $1798
SAVE $700

$3297 $1997
SAVE $1300

$2798 $2498
SAVE $300

$2998 $2498
SAVE $500

$1398 $1198
SAVE $200

$898 $798
SAVE $100

$300 $300
SAVE $0

$1299 $939
SAVE $360

$4499 $2999
SAVE $1500

$4999 $4599
SAVE $400

$2199 $1999
SAVE $200

$2799 $2349
SAVE $450

$3099 $2499
SAVE $600

$2016 $1298
SAVE $718

$249 $149
SAVE $100

$2844 $2297
SAVE $547

$1199 $1099
SAVE $100

$2019 $1399
SAVE $620

$999 $949
SAVE $50

$348 $278
SAVE $70

Get up to 16x more storage and 2x the speeds of the original drive

About Shimano Dura Ace DI2 Electronic Shifting

Last updated 2011-02-13 - Send Feedback
Related: gear, Road Bikes, Shimano

The latest Trek Madone 6.9 SSL frame is outstanding, but the must-have item with it is the Shimano DI2 electronic shifters (DI2 can be found at Amazon for DIY types).

What is Shimano DI2?

DI2 uses electronic signalling between the shifters and the derailleurs. Each derailleur contains an actuator that provides precise and instant shifting, far better than you can manage on your own.

When bike mechanics buy...

Shimano Dura Ace DI2 Derailleur

When a jaded bike mechanic raves about them and buys, you know they work great. They have ultra long battery life, auto-trim, and mis-shifts are banished.

Battery life

See the Battery Life page.

Benefits

There’s no going back to crude mechanical cables for me.

  • Perfect shifts every time — instant, precise shifting, with no cable flex or anything to degrade over time. Well, almost all the time. I had the chain drop off the small front chainring once, and the initial setup must still be done precisely.
  • Auto trim — no more noise from rubbing on the front derailleur.
  • No cables to lube or replace — the cables are lightweight, just enough to carry an electrical signal from the levers to the derailleurs. Think about that— no maintenance.
  • Shift without thinking — with DI2, you’ll rapidly forget you’re shifting, because there are no adjustments to make, no extra torque to shift to the big chainring, etc. It’s all much more fluid.
  • No cable maintenance — there are no mechanical cables to lubricate or replace— long term reliability and lower maintenance.

Integrated brake lever and shifts

Conventional style brake lever, with the DI2 shifters visible near the center of the lever. Being electronic, there is never a torque issue— just press the buttons!

DuraAce DI2 levers for shifting and braking

See also Canon wishlist
View all handpicked deals...

Dell UltraSharp 27 U2717D 27" 16:9 InfinityEdge IPS Monitor
$719 $719
SAVE $0

diglloyd.com | Terms of Use | PRIVACY POLICY
Contact | About Lloyd Chambers | Consulting | Photo Tours
Mailing Lists | RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.
Display info: __RETINA_INFO_STATUS__