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-   -   Di2 Junction box mount (https://www.bikeforums.net/road-cycling/1172201-di2-junction-box-mount.html)

deepakvrao 05-05-19 08:46 AM

Di2 Junction box mount
 
The type that attaches to your steerer. Any suggestions between these 2 types? And, for a 6 degree stem, would it be better to buy a 7 degree mount if I want to mount it just below the stem?

https://www.aliexpress.com/item/Four...AbTest=ae803_5

https://www.aliexpress.com/item/28-6...85c5b5d31aeb-0

noodle soup 05-05-19 09:25 AM


Originally Posted by deepakvrao (Post 20914828)
The type that attaches to your steerer. Any suggestions between these 2 types? And, for a 6 degree stem, would it be better to buy a 7 degree mount if I want to mount it just below the stem?

https://www.aliexpress.com/item/Four...AbTest=ae803_5

https://www.aliexpress.com/item/28-6...85c5b5d31aeb-0

I would get a 7 degree mount, but neither of the ones you posted, unless you have a 31.8mm steerer tube.

this one should work fine.

https://it.aliexpress.com/item/Fouri...e4d1331144d9-8

Marcus_Ti 05-05-19 09:28 AM

I use a Fouriers. Works great. Depending on your stem geometry, you may need a spacer between the mount and the stem anyway.

deepakvrao 05-05-19 09:40 AM


Originally Posted by noodle soup (Post 20914896)
I would get a 7 degree mount, but neither of the ones you posted, unless you have a 31.8mm steerer tube.

this one should work fine.

https://it.aliexpress.com/item/Fouri...e4d1331144d9-8


Chose those as my new Canyon has that odd 1 1/4 steerer. That's 31.8 I think.

noodle soup 05-05-19 09:41 AM


Originally Posted by Marcus_Ti (Post 20914899)
I use a Fouriers. Works great.

+1

It cleans up the stem by eliminating the silly black plastic band.

Marcus_Ti 05-05-19 09:41 AM


Originally Posted by deepakvrao (Post 20914914)
Chose those as my new Canyon has that odd 1 1/4 steerer. That's 31.8 I think.

Is it 1.25straight bore, or tapered? I'd expect tapered, but companies do dumb proprietary things....

noodle soup 05-05-19 09:42 AM


Originally Posted by deepakvrao (Post 20914914)
Chose those as my new Canyon has that odd 1 1/4 steerer. That's 31.8 I think.

That is odd. it severely limits the choice of stems.

deepakvrao 05-05-19 09:45 AM


Originally Posted by Marcus_Ti (Post 20914918)
Is it 1.25straight bore, or tapered? I'd expect tapered, but companies do dumb proprietary things....

This is the stem. It clearly says 1 1/4. Then again, I'm not too great on all these specs.

https://www.canyon.com/en-in/gear/co...laenge=90%20mm

Marcus_Ti 05-05-19 12:26 PM


Originally Posted by deepakvrao (Post 20914927)
This is the stem. It clearly says 1 1/4. Then again, I'm not too great on all these specs.

https://www.canyon.com/en-in/gear/co...laenge=90%20mm

As seen IRL... 6 degree stem and mount, I needed a spacerhttps://cimg9.ibsrv.net/gimg/bikefor...fd8fcb390e.jpg

srode1 05-06-19 05:01 PM


Originally Posted by Marcus_Ti (Post 20914899)
I use a Fouriers. Works great. Depending on your stem geometry, you may need a spacer between the mount and the stem anyway.

Same here, works well.

motosonic 05-06-19 07:57 PM

https://cimg2.ibsrv.net/gimg/bikefor...abbd0d0f5f.jpg
Also have the Fouriers. It does the job. Great little device

deepakvrao 05-06-19 08:03 PM


Originally Posted by motosonic (Post 20917545)
https://cimg2.ibsrv.net/gimg/bikefor...abbd0d0f5f.jpg
Also have the Fouriers. It does the job. Great little device

What is the material that is made of? Curious as to why it is not parallel to the stem? Can it be bent?

Steve B. 05-06-19 08:43 PM

I’m just puzzled that ya’ll find that the stem adapter looks better than the rubber band thing Shimano provides.

To each his own I guess.

deepakvrao 05-06-19 09:09 PM


Originally Posted by Steve B. (Post 20917612)
I’m just puzzled that ya’ll find that the stem adapter looks better than the rubber band thing Shimano provides.

To each his own I guess.

Neater from the top I guess.

Wondering if I should just stick that box underneath the stem with double side tape. Probably the cleanest solution? I've got a square profile stem too.

Dopefish905 05-06-19 09:25 PM

The stock band looks way better...IMO

Racing Dan 05-06-19 10:07 PM

It weird shimano didnt figure out a neater solution to this. The box with the band sticks out like a sore thumb, but the bracket is no better.

noodle soup 05-06-19 10:21 PM


Originally Posted by Racing Dan (Post 20917702)
It weird shimano didnt figure out a neater solution to this. The box with the band sticks out like a sore thumb.

The bar end junction box is much cleaner, but it doesn't work for everyone.

deepakvrao 05-06-19 10:44 PM


Originally Posted by noodle soup (Post 20917716)
The bar end junction box is much cleaner, but it doesn't work for everyone.


Would have loved that, but I use a bar end mirror, and I use right in India, and left when abroad, so can't block the bar end.

ridingfool 05-06-19 11:30 PM


Originally Posted by Racing Dan (Post 20917702)
It weird shimano didnt figure out a neater solution to this. The box with the band sticks out like a sore thumb, but the bracket is no better.

think they have most of this years bikes have it built into the frame at least the few bikes I took out for a test ride and many more in the store had them built into the frame

deepakvrao 05-07-19 03:51 AM

Finally decided to just stick the mount under the stem. So, would you guys suggest Sugru or Blu Tac. Would Blu tac hold?

noodle soup 05-07-19 04:20 AM


Originally Posted by deepakvrao (Post 20917732)
Would have loved that, but I use a bar end mirror, and I use right in India, and left when abroad, so can't block the bar end.

you are the person I had in mind when I said it doesn't work for everyone.

motosonic 05-07-19 06:03 AM


Originally Posted by deepakvrao (Post 20917557)
What is the material that is made of? Curious as to why it is not parallel to the stem? Can it be bent?

It's some sort of composite material. I assume it's not parallel because it would then interfere with those stems that people "slam". My stem just so happens to have a decent up angle on it so there's more space. The stem the bike came with was quite the opposite and you could barely see a space between them.

WhyFi 05-07-19 06:05 AM


Originally Posted by motosonic (Post 20917908)
It's some sort of composite material. I assume it's not parallel because it would then interfere with those stems that people "slam". My stem just so happens to have a decent up angle on it so there's more space. The stem the bike came with was quite the opposite and you could barely see a space between them.

Can you not mount the junction box to either side of the mount? I know that that would put the logo upside down, but flipping the mount would be the lesser evil, to my eye.

deepakvrao 05-07-19 07:08 AM


Originally Posted by WhyFi (Post 20917913)
Can you not mount the junction box to either side of the mount? I know that that would put the logo upside down, but flipping the mount would be the lesser evil, to my eye.

I think that is a 17* mount with a 6* stem?


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