Login required to started new threads

Login required to post replies

Prev Next
Re: DIY Ultegra Di2 TT [allenpg] [ In reply to ]
Quote | Reply
Can I use this SM-BCR2 to charge my old type of battery also?

This type: http://img.artscyclery.com/product/SHUI2BTRY-1.jpg

Quote Reply
Re: DIY Ultegra Di2 TT [superjon] [ In reply to ]
Quote | Reply
No, the old type of battery does not have the charging circuits integrated in to it.
Quote Reply
Re: DIY Ultegra Di2 TT [VP] [ In reply to ]
Quote | Reply
Updated the firmware and RD-6770 now works with SW-9071, ST-9071 and multi-shift. The FD-6770's braze-on bolt inserts came loose during installation and the derailleur is out to Shimano for warranty.
Quote Reply
Re: DIY Ultegra Di2 TT [VP] [ In reply to ]
Quote | Reply
After this firmware update, when the RD-6770 RD is paired with the ST-9071, does the RD shift properly on an 11-speed cassette or on a 10-speed cassette?

Advanced TopTube Bento Speedpacks for Road, Gravel, & Triathlon.. .Direct-mount & ZeroSlip-mount, made in the USA.. .DarkSpeedWorks.com. .Reviews. .Instagram. .Facebook
"Why would you want to be the last man alive on a sinking ship?" -- on why Tesla shares its patents.
Quote Reply
Re: DIY Ultegra Di2 TT [DarkSpeedWorks] [ In reply to ]
Quote | Reply
10-speed CS-6700 11-23 on a FFWD disc wheel.
Quote Reply
Re: DIY Ultegra Di2 TT [DarkSpeedWorks] [ In reply to ]
Quote | Reply
You would need the new Dura-Ace Di2 RD-9070 for 11 speed compatibility.
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
Does anyone know if the reverse is possible? Can you use 6770 shifters with 9070 RD for 10-speed action? I really don't care to upgrade to 11-speed at this time but really like the looks and weight of the 9070 RD compared to the 6770 RD.
Quote Reply
Re: DIY Ultegra Di2 TT [bonafide505] [ In reply to ]
Quote | Reply
I also wonder about this. What parts decide 10speed ore 11speed ? ?
Quote Reply
Re: DIY Ultegra Di2 TT [superjon] [ In reply to ]
Quote | Reply
superjon wrote:
What parts decide 10speed ore 11speed ? ?

The rear derailleur only.
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
so would 6770 shifters work the 11-speed 9070 derailerus?
Quote Reply
Re: DIY Ultegra Di2 TT [bonafide505] [ In reply to ]
Quote | Reply
bonafide505 wrote:
so would 6770 shifters work the 11-speed 9070 derailerus?


EDIT: Yes, both are e-tube and are cross-compatible.
Last edited by: Carlton Bale: May 14, 13 20:13
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
Those are both e-tube systems...

I'm racing 2019 IM Arizona as part of Team Smile Train. Will I implode? Will I finish strong? Donate to find out more!
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
9070 is the new DA not 7970.
In Reply To:
Quote Reply
Re: DIY Ultegra Di2 TT [bonafide505] [ In reply to ]
Quote | Reply
To answer your question if I remember correctly

If you have a 6770 system (Ultegra Di2) and you install a 9070 RD, (technically Shimano would suggest a 9070 FD as well), 11spd chain, 11spd cassette, and compatible wheels you would have an 11spd system. The shifters, once plugged into the RD (which contains the important stuff) think it's an 11spd system.

I'm racing 2019 IM Arizona as part of Team Smile Train. Will I implode? Will I finish strong? Donate to find out more!
Quote Reply
Re: DIY Ultegra Di2 TT [James Haycraft] [ In reply to ]
Quote | Reply
James Haycraft wrote:
To answer your question if I remember correctly

If you have a 6770 system (Ultegra Di2) and you install a 9070 RD, (technically Shimano would suggest a 9070 FD as well), 11spd chain, 11spd cassette, and compatible wheels you would have an 11spd system. The shifters, once plugged into the RD (which contains the important stuff) think it's an 11spd system.

Yes, this is correct.
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
Carlton, James...Thanks
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
Hi Carlton,

Are the recently released sw-r610 11 sp sprint shifters compatible with Ui2 10 speed? I want to add sprint shifters to my setup but cant seem to confirm this info. I'm assuming that once you plug these sprint shifters they would automatically just function as an extension of the rest of the system which is 10 speed, what are your thoughts? I appreciate any advice on this matter:)

"I swim because that's how I get to ride my bike."

Quote Reply
Re: DIY Ultegra Di2 TT [Dopers.Suck] [ In reply to ]
Quote | Reply
Everything except the sprint shifters are cross-compatible between Ultegra and the new Dura-Ace Di2. You may need to update the the firmware though...

For whatever reason, the sprint shifters work with Dura-Ace 9070 only. The climbing shifters work with both.
Last edited by: Carlton Bale: May 14, 13 20:15
Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
Ok, thanks for the update. I'll order them and update the firmware.

"I swim because that's how I get to ride my bike."

Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
I've heard that the sprint shifters fit into a special port on the Dura-Ace STI levers and that port is missing in the Ultegra version.
Quote Reply
Re: DIY Ultegra Di2 TT [VP] [ In reply to ]
Quote | Reply
Is there anyway to confirm what you heard? Do you know a shimano rep or someone in the know?

"I swim because that's how I get to ride my bike."

Quote Reply
Re: DIY Ultegra Di2 TT [Carlton Bale] [ In reply to ]
Quote | Reply
i wondering if the following setups would work -

1) DIY or third-party charger
a) Cable Junction SM-EW67-A-E
b) Internal Battery SM-BTR2
c) Charger with DIY connector to plug into EW-SD50 cable
2) SM-BCR2 Charger
a) Cable Junction SM-EW67-A-E
b) Internal Battery SM-BTR2
c) SM-BCR2 Charger, with DIY adapter to plug into EW-SD50 cable

With setup 1, the cost is reduced by not using 1 x SM-EW90-A junction, 2 x additional EW-SD50 and 1 x SM-BCR2 Charger (substitute with 8.4V, 0.4A charger).
With setup 2, the cost is reduced by not using 1 x SM-EW90-A junction, 2 x additional EW-SD50. The OEM charger is used for firmware updates.

Both setups are based on the assumption that the SM-EW90-A junction does not have any circuitry. Besides cost saving, the advantage of this approach is no hacking to the OEM parts is required.
Quote Reply
Re: DIY Ultegra Di2 TT [Dopers.Suck] [ In reply to ]
Quote | Reply
I asked the exact same question of our Shimano tec rep at a recent tour. Wanted to use the sprint shifters for customers with Cervelo P5s with hydraulic brakes. Unfortunately, the new e-tube sprint shifter will only work in the 3rd port of the 9070 STI lever.

But I also pitched the question of the tri bike setup where replacing the brake levers with 9071 is not an option ... still awaiting a response
Quote Reply
Re: DIY Ultegra Di2 TT [freeloader] [ In reply to ]
Quote | Reply
Quote Reply
Re: DIY Ultegra Di2 TT [di2diy] [ In reply to ]
Quote | Reply
Looks interesting, but I'm not sure if the price is low enough to outweigh the "factory-ness" of the Shimano internal battery solution. Regardless, good luck with the new product.
Quote Reply

Prev Next