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Shimano Di2 Right E-Tube Shifter for Aero Bar Extension

by SHIMANO
4.4 out of 5 stars 20 ratings

Price: S$152.92 (S$31.86 / in) + S$8.69 Delivery
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  • Multiple control positions mean shifts are always close at hand Fast, accurate, effortless shifts
  • Double controls on aero bar shifters

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Product description

The wrist and hand motion required to shift gears with conventional Time Trial shifters is not only wasted time, but a compromise in bicycle control as well. Shimano uses a two-button interface on the Ultegra Di2 Remote TT Shifter Set that requires minimal movement from your thumb for instant cadence adjustment without a change in hand position. That's an undeniable advantage to electronic shifting. The fact that your sleek TT bike won't have mantis-like forelegs should also call your attention to these lightweight gear selectors. Another advantage is there are no cables. No cables means no friction. Also, the system makes fast shifts up or down the range, front and rear. Each shift is the same. Every time -- you'll appreciate the consistency. Better still, you can kiss cable maintenance goodbye. Never again will your shifting performance degrade over time or will you have to fumble with cable tension. The double buttons have a pronounced surface area to make shifts a thoughtless, fully-intentional affair. The buttons have 2mm of travel, and are as easy to use as a mouse click. Each click of the button results in one shift. If you're coasting, you can pre-shift any number of gears, and the system will engage when you start pedaling. The Ultegra Di2 Remote TT Shifter Set is not backwards compatible with the Dura-Ace 7970 Di2 derailleurs or wire kits. It is compatible with Dura Ace 9070 11-speed and Ultegra Di2 10-speed E-tube electronics systems. It plugs into the second port of the Ultegra Di2 levers, and can also be used with Ultegra Di2 in a TT/Tri setup without Ultegra Di2 levers by using the SM-JC41 Junction Box.


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Most helpful customer reviews on Amazon.com

Amazon.com: 4.0 out of 5 stars 16 reviews
Raleigh Littles
5.0 out of 5 stars Must-have if you use clip on aero bars, but poorly documented
14 August 2020 - Published on Amazon.com
Verified Purchase
Customer image
5.0 out of 5 stars Must-have if you use clip on aero bars, but poorly documented
Reviewed in the United States on 14 August 2020
I use these on a set of Profile Design T2+ Clip-on TT bars and so far its been perfect.

The biggest issue I have with this product is that it seems to be poorly documented, specifically regarding installation. There's little information in the way of how to actually install these or what clip-on bars its actually compatible with.

There's no also real way to "secure" these to your tri bars. In the actual pictures I could find of this product (which are few and far between), pretty much everyone just uses some kind of tape at the end, even though most tri bars you get don't come with any kind of tape. I used black electrical tape to mount mine and it seems to be okay, although it doesn't look very clean.

The cabling configuration also left up to you -- you'll need to figure out how to get them connected to your junction box. My bike only came with a 3-port Junction box, so I had to upgrade to the 5-port to be able to connect these.

Also, this isn't explained anywhere, but you can just use two 'Right' models if you can't find a full set -- the only difference between the left and right models is how the cable is arranged, and if you use them both facing up rather inwards, it won't matter.
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Shay
5.0 out of 5 stars Must have on any clip-on aero bars!
23 August 2020 - Published on Amazon.com
Verified Purchase
Customer image
5.0 out of 5 stars Must have on any clip-on aero bars!
Reviewed in the United States on 23 August 2020
This product is a must-have on any clip-on aero bars! Riding with it is so different when you can switch gears easily without changing positions. Setup was relatively easy and quick on a DI2 (Ultegra), which took about 45 minutes, including removing the bar tape and putting it back. You can unscrew the cap and move the wire to go out from within the mounting screw and then internally through the tube. The cable is long enough to get to the DI2 shifters' junctions on the handlebars, and the mounting screw is durable and sits firmly on the aero bars. My only complaint would be the price.
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mamil
5.0 out of 5 stars Plug, play, and race. Applause.
25 October 2015 - Published on Amazon.com
Verified Purchase
4 people found this helpful
Cici Ciconia
4.0 out of 5 stars SW-R671
3 May 2013 - Published on Amazon.com
Verified Purchase
4 people found this helpful
Mike Jensen
5.0 out of 5 stars Love them!
16 May 2015 - Published on Amazon.com
Verified Purchase
3 people found this helpful