Di2 Junction box mount
#1
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
https://www.aliexpress.com/item/Four...AbTest=ae803_5
https://www.aliexpress.com/item/28-6...85c5b5d31aeb-0
#2
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
https://www.aliexpress.com/item/Four...AbTest=ae803_5
https://www.aliexpress.com/item/28-6...85c5b5d31aeb-0
this one should work fine.
https://it.aliexpress.com/item/Fouri...e4d1331144d9-8
#3
FLIR Kitten to 0.05C
Joined: Sep 2014
Posts: 5,331
Likes: 409
From: Lincoln, Nebraska
Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2
I use a Fouriers. Works great. Depending on your stem geometry, you may need a spacer between the mount and the stem anyway.
#4
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
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.
#6
FLIR Kitten to 0.05C
Joined: Sep 2014
Posts: 5,331
Likes: 409
From: Lincoln, Nebraska
Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2
#8
https://www.canyon.com/en-in/gear/co...laenge=90%20mm
#9
FLIR Kitten to 0.05C
Joined: Sep 2014
Posts: 5,331
Likes: 409
From: Lincoln, Nebraska
Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2
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
https://www.canyon.com/en-in/gear/co...laenge=90%20mm
#10
Gravel Rocks
Joined: Dec 2018
Posts: 300
Likes: 38
From: Ohio
Bikes: Trek Domane and Crockett, BH G7, Niner RLT9, RLT9 RDO
#12
#13
Senior Member


Joined: Jul 2007
Posts: 8,611
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From: South shore, L.I., NY
Bikes: Trek Emonda SL7, Cannondale Topstone, Miyata City Liner, Specialized Chisel, Specialized Epic Evo
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.
To each his own I guess.
#14
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.
#17
#18
#19
Full Member
Joined: Jun 2015
Posts: 244
Likes: 20
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
#21
#22
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.
#23
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.
#24







