Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Wed May 04, 2016 7:37 am
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED

If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 23 posts ]  Go to page 1 2 Next
Author Message
PostPosted: Tue Sep 01, 2009 2:52 pm 
Offline
User avatar

Joined: Tue Jun 10, 2008 3:25 pm
Posts: 77
I have now completed installing the internal wiring for the Di2 system. The frameset is a deddachia scuro which had campag record gears. All the gear bosses fitted to the frame had to be removed, all the holes apart from one was filled using epoxy, then repainted.
The battery conversion was fairly simple, but this being the first one i have done i was working in the dark regarding the battery module itself. This conversion would suit most seat posts.
I will go into more detail when i load up the photo's.


Top
   
PostPosted: Tue Sep 01, 2009 5:31 pm 
Offline
Formerly known as PezTech
User avatar

Joined: Tue Sep 26, 2006 12:37 am
Posts: 5746
Location: Phoenix Arizona
sounds like it will look super clean but purely on a performance base isnt it better to have the battery low on the frame?

_________________
charles@pezcyclingnews.com


Top
   
PostPosted: Tue Sep 01, 2009 6:45 pm 
Offline
User avatar

Joined: Tue Jun 10, 2008 3:25 pm
Posts: 77
I agree that it would be better to have a lower centre of gravity, but would you really notice 50gramms ?


Top
   
PostPosted: Tue Sep 01, 2009 6:50 pm 
Offline
User avatar

Joined: Mon Jan 23, 2006 6:35 am
Posts: 5072
Location: New York
Most likely no. And wouldn't a seat bag filled with stuff be heavier?

_________________
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


Top
   
PostPosted: Tue Sep 01, 2009 7:19 pm 
Offline

Joined: Fri Feb 17, 2006 6:22 am
Posts: 1323
Location: Zion
Was it Garmin that mounted the battery underneath the saddle?!

_________________
My sub-5.6kg / 12.32lb Addict R1

My ~9.3kg / ~20.5lb Scale 29 Pro


Top
   
PostPosted: Tue Sep 01, 2009 7:27 pm 
Offline

Joined: Tue Jan 27, 2009 1:31 am
Posts: 188
its was Columbia on the plasma 3 in the giro this past year that got it started if i remember correctly


Top
   
PostPosted: Tue Sep 01, 2009 8:02 pm 
Offline
User avatar

Joined: Tue Jun 10, 2008 3:25 pm
Posts: 77
At least with this mod it gets rid of the bulky looking battery holder and its location.
All the parts are still used with the addition of 1 switch, 1 male & female connector and some extra wires. and a bit of heat shrink.


Top
   
PostPosted: Tue Sep 01, 2009 9:44 pm 
Offline
Tinker, Taylor, Tart
User avatar

Joined: Sat Nov 29, 2008 8:00 pm
Posts: 1792
Location: Sydney, 'straylia
New Madone mounts it under the BB - tidiest place whilst still being easily accessible I reckon


Top
   
PostPosted: Tue Sep 01, 2009 10:46 pm 
Offline

Joined: Mon Sep 08, 2008 3:37 pm
Posts: 151
This sounds interesting - post some photos! I've never tried Di2, and doubt I will for a while. But I like 'clean' looking bikes, so the internal routing should help clean things up a bit. If 50g is all the battery weighs then it won't affect the ride at all, wherever it is. Think how much a heavier saddle changes the ride over a lighter one - nothing at all (except in the comfort department!)


Top
   
PostPosted: Sun Sep 13, 2009 7:39 pm 
Offline
User avatar

Joined: Tue Jun 10, 2008 3:25 pm
Posts: 77
Ok, here is a small update. I have loaded them on photobucket which makes my life easier. Some things still need to be made better.
will give more details later. Let the pictures do the talking.
http://s277.photobucket.com/albums/kk44/zyman2464/


Top
   
PostPosted: Sun Sep 13, 2009 8:45 pm 
Offline

Joined: Sat Dec 13, 2003 2:25 am
Posts: 4700
Location: Canada
If I am following your photos correctly, you: disassembled the battery case and wiring; replaced the wires with a longer, home-made harness; added an on/off switch behind the bottom bracket; re-routed all the power through the seatpost and seat tube; and, mounted the battery under the saddle. Is that correct? Did you use the stock battery case again? Can you provide us some photos of the under-saddle mounting?


Top
   
PostPosted: Mon Sep 14, 2009 8:00 am 
Offline
User avatar

Joined: Tue Jun 10, 2008 3:25 pm
Posts: 77
I removed the battery from it's case and enclosed it with adhesive waterproof heatshrink. see photo 10, it is inserted into the seatpost, then held in place with some silicone sealer so that it would be easy to remove if i ever needed to. It is recharged via the 3 way socket embeded in the seatpost. The original battery case is then used with the shimano charger to charge the battery as normal. I will take some more photo's showing this. I discharged the battery and recharged it using this modification to check the charging function.


Top
   
PostPosted: Mon Sep 14, 2009 3:24 pm 
Offline

Joined: Sat Aug 30, 2008 7:07 am
Posts: 638
any structural concerns about drilling a hole in the seatpost like that?

that's some serious handiwork. very clean setup. kudos! :thumbup:


Top
   
PostPosted: Mon Sep 14, 2009 3:50 pm 
Offline

Joined: Sat Dec 13, 2003 2:25 am
Posts: 4700
Location: Canada
That is among the best work, of any kind, that I have seen to-date.

It would be great to try to do something similar with an integrated bike with the battery at the junction of the seatmast and the bottom bracket and the recharger out the top of the seatmast under the saddle...


Top
   
PostPosted: Mon Sep 14, 2009 5:28 pm 
Offline

Joined: Wed Feb 09, 2005 4:51 am
Posts: 1827
woww... great stuff!

Just wondering though, where did you get the wire grommets from?

Image

Thanks! :thumbup:


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 23 posts ]  Go to page 1 2 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. SRM Powermeter battery status

in Road

claus

0

421

Sat Aug 29, 2015 4:41 am

claus View the latest post

There are no new unread posts for this topic. Attachment(s) Internal or external DI2 battery

in Road

muntos

14

1031

Sat Jan 16, 2016 1:40 pm

garlet View the latest post

There are no new unread posts for this topic. Shimano D-Fly Affecting Battery Life

in Road

allenpg

12

973

Sun Jul 05, 2015 12:21 am

mr4fox View the latest post

There are no new unread posts for this topic. BCR2 Internal Battery question

in Road

basenji29

7

216

Sat Nov 14, 2015 2:23 pm

glepore View the latest post

There are no new unread posts for this topic. Di2 7970 battery plug wiring

[ Go to page: 1 2 ]

in Road

drmutley

16

679

Wed Aug 19, 2015 3:29 pm

drmutley View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Baidu [Spider], Google [Bot], kulivontot, tomycs and 24 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited