di2 on my cross bikes

Especially for light weight issues concerning cyclocross / touring bikes & parts.

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4crosswheels
Posts: 140
Joined: Thu Mar 03, 2011 10:41 am
Location: UK, Industry

by 4crosswheels

hi guys,
im just sorting out 2 di2 groupsets for my cross bikes that ive had resprayed and which i may say look fantastic.They are a custom scott scandium frame because im so tall and have long limbs i run them with easton cx90 forks.However they have no bottle cage mounts,how would you suggest i mount the battery? They run a 31.6 seat post and due to the application i dont want to highly mod them because water will undoubtedly get in.Any ideas?
Bruce

row618
Posts: 28
Joined: Fri Oct 30, 2009 10:41 pm

by row618

put it under your seat on the back of the seatpost

away for the heavy mud and once your seat is set you do not really need access the the seatbolts unless there is slippage.

that is where i would put it and you do not have alter the frame at all
nathan

4crosswheels
Posts: 140
Joined: Thu Mar 03, 2011 10:41 am
Location: UK, Industry

by 4crosswheels

how would i mount it like that then? good idea
Bruce

maxxevv
Posts: 1955
Joined: Wed Feb 09, 2005 4:51 am

by maxxevv

Problem would not be modifying the harness if you do not know how, and yet not modifying the frame.

I would suggest cable tie the battery mount bracket to the seatpost. And tug it as high up as possible.

Run the main harness from the the handlebar on the toptube. And run the RD connector wire on the right seatstay.

BUT The harness may not be long enough for the FD connectors and RD connectors if run this way unless you're using a 'Large' harness on an extra-small frameset. I've not tried it that way, but it might work. Good luck!

520 Dan
Posts: 3308
Joined: Wed Oct 08, 2003 4:15 am
Location: tucson
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by 520 Dan

you could drill a small hole in the frame and use one of the new aftermarket internal batteries.


TCx
Posts: 96
Joined: Sat May 14, 2011 3:56 pm
Location: South Coast near Portsmouth

by TCx

Are there multiple companies offering internal batteries off the shelf? I only know of Calfee if you don't want to butcher the harness yourself. I'm not keen on spending out the kind of money calfee want (and that's before having to ship my new frame to the states to do the work), I'm also not overly confident with a soldering iron, so if anyone does know of any other internal batteries Please let me know. Sorry to hijack your thread slightly.
Can you ever have to many bikes?

4crosswheels
Posts: 140
Joined: Thu Mar 03, 2011 10:41 am
Location: UK, Industry

by 4crosswheels

I think that like the felt securing the battery would be good on the seat post its just a question of how do it? Or just zip tie on the down tube?
Bruce

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

just two wires for the battery. i'm sure you could pay somebody to lengthen the wire for you if you're not comfortable with it. it's not hard. since it's cross, though, i would make sure the breaks are sealed with adhesive-lined heat shrink, and another piece of shrink over the two-wire bundle.
for mounting it to the post, or even on the frame in the stock location, you can use something as simple as a pair of zefal "gizmo clamp" bottle cage mounts.
Image
replace the hardware with aluminum or nylon for weightweenieness.

meatcalves
Posts: 5
Joined: Mon Sep 05, 2011 7:14 pm

by meatcalves

Are you going Ultegra or Dura-ace?

xnavalav8r
Posts: 2643
Joined: Mon Jan 21, 2008 12:09 pm

by xnavalav8r

Look here!

viewtopic.php?f=10&t=93379

This is what I am using.

4crosswheels
Posts: 140
Joined: Thu Mar 03, 2011 10:41 am
Location: UK, Industry

by 4crosswheels

how much are they and how do you mount?
bruce

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