Alfine DI2 1x11 setup

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Ed209
Posts: 34
Joined: Wed Jul 08, 2015 1:55 pm

by Ed209

Hi all,

I currently run a 1x11 SRAM Red/Rival setup on my race bike, and love it. I've been thinking about going DI2. After scoring an absolute bargain on ebay for a new right hand Alfine DI2 shifter yesterday, I've decided to take the plunge.

I'm completely new to DI2, so am trying to figure out how it all works. Since I'm sticking with 1x11, then I think I only need the following?:

-Right hand shifter (already bought an Alfine DI2 shifter for this job)
-Junction Box
-Battery
-DI2 6870/9070 rear mech
-associated cables.

Those who know about DI2, can you tell me if I've got this right, and if this plan would even work please?

As for the lefthand brake lever, am I right in thinking that the Ultegra 6770 levers are physcially the same as the Alfine DI2 levers? So if I used a 6770 Ultegra lever for the left hand brake lever, the pair would match?

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deek
Posts: 406
Joined: Fri Aug 31, 2012 6:32 pm

by deek

Why not use the Alfine left hand brake lever? Probably cheaper since it won't have the electronics that you won't be using with a 1x11 set up anyway. Probably lighter too.

Ed209
Posts: 34
Joined: Wed Jul 08, 2015 1:55 pm

by Ed209

Yes, but I'm more likely to find a used 6770 lever on eBay.

Ritxis
Posts: 1119
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

Ed209 wrote:Hi all,

I currently run a 1x11 SRAM Red/Rival setup on my race bike, and love it. I've been thinking about going DI2. After scoring an absolute bargain on ebay for a new right hand Alfine DI2 shifter yesterday, I've decided to take the plunge.

I'm completely new to DI2, so am trying to figure out how it all works. Since I'm sticking with 1x11, then I think I only need the following?:

-Right hand shifter (already bought an Alfine DI2 shifter for this job)
-Junction Box
-Battery
-DI2 6870/9070 rear mech
-associated cables.

Those who know about DI2, can you tell me if I've got this right, and if this plan would even work please?

As for the lefthand brake lever, am I right in thinking that the Ultegra 6770 levers are physcially the same as the Alfine DI2 levers? So if I used a 6770 Ultegra lever for the left hand brake lever, the pair would match?


No problem, my Scott Cr1 with Ultegra 6870 and Alfine St
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Ed209
Posts: 34
Joined: Wed Jul 08, 2015 1:55 pm

by Ed209

Ah, very interesting. Thanks Ritvix.

Is that the junction box tied to your brake cables under the stem?

What's this EV6770 thing I've heard about, which is apparently a replacement for the junction box?

Ritxis
Posts: 1119
Joined: Fri Jun 01, 2012 3:00 pm
Location: San Sebastian

by Ritxis

yes, external junction box SM-JC40, in brake cables SM-EW67 cockpit junction

by Weenie


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Ed209
Posts: 34
Joined: Wed Jul 08, 2015 1:55 pm

by Ed209

And which one do you have? Both?

Are both necessary?

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