Shimano Dura-Ace Di2 9070 Shift Upgrade

Shimano Di2 Shifters
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State of the art Di2 electronic technology for instant and accurate shifts. 11-speed compatible, with enhanced feedback and improved ergonomics for easier access to the shift buttons from the top of the hoods. Cleaner wiring, thanks to single-wire E-tube connections, make it easy to add satellite shifters for bar tops or in the drops. The ergonomics are slimmed down and further refined for a comfortable grip.
Shimano Di2 Junction Box
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Shimano has simplified and improved the front junction box (junction A) for Di2. The new Di2 unit utilizes a rubber strap that cleanly and aerodynamically fastens underneath the stem. Available in either 3-port or 5-port junction.
Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Shimano Di2 Junction Box
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The Shimano Di2 SM-JC4 junction box connects the electric wires from the rear derailleur, front derailleur, battery, and shift levers. There are two types, external (mounted under the bottom bracket) and internal (for Di2 compatible frames.)
Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Battery System
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The 7.4V, high performance Lithium Ion battery is designed to deliver reliable, long life even in the worst conditions. In conditions requiring consistent and frequent shifting, the battery is capable of 1000 kilometers of use.
Battery System
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The Shimano Di2 SM-BR2 battery mount holds the battery securely to the frame. The mount is available in three styles: a long mount for external routing, a long mount for internal routing, and a short mount that is designed to be used on bike frames that bear a specific Di2 battery mounting location.
Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Shimano Di2 Front Derailleur
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For use with double crankset
Braze-on
Weight: 114 g.
Top Gear Teeth: 50-56T
Capacity: 16 tooth 11-spd

The precision actuators move the cage swiftly and smoothly for fast, silent, accurate front shifts every time. The single-wire E-tube connection to the rest of the system allows the front derailleur to automatically trim itself as you shift the rear derailleur, eliminating chain rub.

Features of Dura Ace Di2 9070 F/D
  • Integrated CPU monitors both front and rear shifting for precise and consistent derailleur alignment
  • Computer integration allows the front derailleur to track the chain eliminating the need for manual trim and also eliminates chain drop when shifting inward from the big ring.
Front Derailleur Clamp (optional)
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Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Shimano Di2 Rear Derailleur
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Shimano Ultegra Di2 offers the most precise and reliable shifting imaginable, at the push of a button. Adjust the derailleurs once, and the intelligent, auto-trimming system returns derailleurs to the same position every time. The intuitive and user-friendly design can be set up at home and accommodates any frame; new or old.
Wire Kit
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Never worry about cable tension or derailleur adjustment again. Simply measure four main wire lengths to accommodate your frame size, plug them into their watertight connections and you're ready to ride. The Shimano DI2 Electric Wire comes in 13 difference lengths so you can customize the wiring setup for your frame. Each EW-SD50 wire is waterproof and can be routed externally or internally. Best use for each wire length will usually be: 300-400mm forJunction Box B to front derailleur, 500-600mm for Junction Box B to rear derailleur, and 650-950 forJunction Box A to shift levers or unique routing.

Simply take four measurements on your frame: 1) Center of bottom bracket to rear derailleur (allowing for extra loop to derailleur). 2) Center of bottom bracket to front derailleur. 3) Center of bottom bracket to downtube water bottle cage (for battery). 4) Center of bottom bracket to front of stem.
Battery System
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The BCR1 charger is required for the Di2 BTR1 battery. Requires SM-BCC1 Charger Cable (not included).
The BCR2 charger is required for the Di2 BTR2 battery.
Battery System
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Power cord to fit SM-BCR1 Battery Charger and Type-A (USA, Canada) wall outlet.
Select Chain
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Weight: 243 g. (116 link)

How do you make a Dura Ace chain even lighter? Just make it even thinner, to fit in an 11-speed cassette. The symmetrical 11-speed Dura-Ace chain uses hollow pins for low weight, PTFE coating for smooth shifts and offers increased durability.
Select Cassette
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Take a Dura-Ace 10 -speed 7900 cassette, add 3 grams and what do you get? The Shimano Dura-Ace CS-9000 Cassette, with 11 speeds! This amazingly light weight was achieved by a few clever design features, including a carbon mid spider carrier and all cogs over 16T being made from titanium. Plus, now with 11 speeds, you get more usable gears in each cassette range.

$2,399.00

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Description

This Shimano Dura- Ace Di2 9070 upgrade kit includes: Shimano Dura-Ace Di2 9070 front derailleur, rear derailleur, shifters; Shimano Dura-Ace 9000 cassette and chain. Front Derailleur Clamp Sold Separately.

Also includes Di2 Power System: 9070 Di2 Wire Kit; Di2 Battery, charger and cable. System Programmer Sold Separately.

Model Number
shimano-dura-ace-ssbbby13
Item Code
SSBBBY13

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