Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Sat Jul 30, 2016 6:28 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
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
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  [ 9 posts ] 
Author Message
 Post subject: Which e-tubes to buy?
PostPosted: Thu Jan 02, 2014 7:46 pm 
Offline
User avatar

Joined: Fri Sep 17, 2010 4:48 pm
Posts: 213
Heya,

I'm in the process of gathering all the necessary bits and pieces for my next build- a Colnago C59 Dura-Ace Di2.

Does anyone have any insight into what lengths of e-tube I'll need? I suppose I could just order up a whole bunch but I'd rather be a bit more precise as they're each nearly $40.

Thanks in advance.

-J


Top
   
PostPosted: Thu Jan 02, 2014 8:07 pm 
Offline
User avatar

Joined: Wed Mar 06, 2013 4:23 pm
Posts: 614
Location: Austin, TX
When I was in the same boat as you as to what lengths of wire to get for my R5 build, I ran string to all the termination points to simulate the wires and then measured the strings. If it's borderline go a little longer.

_________________
My Cervelo R5
My Lynskey Helix
My MTB


Top
   
PostPosted: Thu Jan 02, 2014 10:04 pm 
Offline

Joined: Wed Oct 23, 2013 8:38 pm
Posts: 9
What's the size of the bike you'll be building up?

These guys have them for less than $30 if you want to try a few sizes

http://www.artscyclery.com/Shimano_SD50 ... b=RDMCOMPS


Top
   
PostPosted: Thu Jan 02, 2014 11:08 pm 
Offline

Joined: Tue Feb 05, 2013 11:53 pm
Posts: 203
Competitive Cyclist has a nice table with the suggested sizes:
http://www.competitivecyclist.com/shima ... F0MTAwMTA5


Top
   
PostPosted: Tue Jan 07, 2014 8:53 am 
Offline

Joined: Tue May 23, 2006 4:33 am
Posts: 965
That Competitive Cyclist chart is pretty good.

Basically, unless you're riding very wide bars or have a very tall bike, 350 mm cables work for each shift lever, the rear derailleur, and the front derailleur. 750 mm cables work for an internal seat post battery and for the down tube connection. I fix the junction box under the front of the stem -- it tends to be a messy install if it's on a brake cable or anywhere else.

Be sure to leave a little loop of cable (taking up a couple centimeters or so) at each lever so that if anything gets knocked in a fall, it doesn't pull the cable out of the lever socket. Generally try to have the brake cable shield the e-tube cable from hits -- the rubber insulation isn't all that tough and can be crushed, at which point the system can start to act erratically. Tape everything down along the bars -- don't count on the handlebar tape to keep it in place. And I got some heat-shrinkable tubing (Home Depot had 7-foot rolls of the stuff in the right size), which you can use both just to protect the cables as they go in and out of frame holes. Also, you can slip sections over the rear brake housing (and perhaps elsewhere) and run the e-tube inside so the two cables are sandwiched together. A little hair dryer action and the tubing tightens up neatly over both parts.


Top
   
PostPosted: Wed Jan 08, 2014 6:15 pm 
Offline
Moderator
User avatar

Joined: Wed Aug 23, 2006 9:11 pm
Posts: 2877
Location: People's Republic of Boulder
11.4 wrote:
And I got some heat-shrinkable tubing (Home Depot had 7-foot rolls of the stuff in the right size), which you can use both just to protect the cables as they go in and out of frame holes. Also, you can slip sections over the rear brake housing (and perhaps elsewhere) and run the e-tube inside so the two cables are sandwiched together. A little hair dryer action and the tubing tightens up neatly over both parts.


Great tip and idea!

_________________
-Deacon Doctor Colorado Slim


Top
   
PostPosted: Wed Jan 08, 2014 10:29 pm 
Offline

Joined: Fri Dec 12, 2008 5:19 am
Posts: 750
Location: Brisbane, Oz
11.4 wrote:
Also, you can slip sections over the rear brake housing (and perhaps elsewhere) and run the e-tube inside so the two cables are sandwiched together. A little hair dryer action and the tubing tightens up neatly over both parts.
Nice tip.


Top
   
PostPosted: Thu Jan 09, 2014 3:33 am 
Offline

Joined: Sun Oct 07, 2012 7:39 pm
Posts: 38
Here is the Shimano guide on how to measure for e-tube wire lengths.

Image


Top
   
PostPosted: Fri Jan 10, 2014 5:30 pm 
Offline
User avatar

Joined: Mon Aug 17, 2009 6:45 am
Posts: 32
That is a nice guide. Just to make sure, I would mock up a piece of rope and measure it to make sure. That's what I did with my Cervelo R5.

vwo05 wrote:
Here is the Shimano guide on how to measure for e-tube wire lengths.

Image


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 9 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. 80mm latex tubes

in Road

A2ON

2

156

Wed Jul 20, 2016 2:16 pm

A2ON View the latest post

There are no new unread posts for this topic. Latex tubes, failures.

[ Go to page: 1 2 3 ]

in Road

PLuKE

39

2830

Fri Sep 04, 2015 8:11 pm

rtarh2o View the latest post

There are no new unread posts for this topic. Tufo tape and Continental tubes

[ Go to page: 1 2 ]

in Road

muntos

17

938

Tue May 24, 2016 8:32 pm

chris101 View the latest post

There are no new unread posts for this topic. Road bike Handlebar with 22.2mm drop tubes?

in Road

andreszucs

8

314

Sat Apr 30, 2016 11:21 pm

MisterMuncher View the latest post

There are no new unread posts for this topic. Trusworthy tubes for your clincher race wheels ?

in Road

LouisN

10

609

Fri Mar 25, 2016 10:30 am

stormur View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Adonis91, Darceking, Exabot [Bot], Majestic-12 [Bot], MSNbot Media and 27 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