Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Question on adding cross levers to a Tiagra STi setup

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Question on adding cross levers to a Tiagra STi setup

Old 12-22-08, 03:25 PM
  #1  
cherish the day
Thread Starter
 
buck65's Avatar
 
Join Date: Jun 2006
Location: South Pasadena, CA
Posts: 364

Bikes: Rivendel Sam Hillborne, SOMA San Marcos

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Question on adding cross levers to a Tiagra STi setup

Disclaimer: did a search and checked Sheldon's site but didn't find what I was looking for. Also looked at a number of PDF files from the Tektro and Shimano sites.

Hi all,
I currently have a stock Bianchi Volpe appointed with Tiagra shifter/brakes on top of the hoods. I'd like to add some cross levers to this setup but am wondering how the cabling will be done. Does anyone have a tutorial on how to set this up correctly?

I haven't purchased any parts yet but am doing some install research before I dive into this project. I had a few questions that I would love to have answered?

Are the hood shifter and cross shifter cables connected in any way?
Should I just run two sets of cables to my cantilevers?
Are there any special kits that I haven't seen that accomodate both types of handlebar brake levers?


Now I'm not a mechanic, but it seems that all I need to do is attach the cross cable somewhere down the line of the hood cable....but then again I could be completely wrong. If anyone has suggestions on how to get this done, I'd greatly appreciate it. Thanks in advance!

tony
buck65 is offline  
Old 12-22-08, 03:46 PM
  #2  
Senior Member
 
Steev's Avatar
 
Join Date: Jul 2005
Location: Backwoods of Ontario
Posts: 2,152
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Cross levers do nothing to shift cables, they operate the brakes only.
Basically you unwrap the bars, disconnect the brakes cables and pull them back. Install the cross levers, cut the housings to fit, re-run brake cables and re-wrap bars.
Steev is offline  
Old 12-22-08, 04:05 PM
  #3  
cherish the day
Thread Starter
 
buck65's Avatar
 
Join Date: Jun 2006
Location: South Pasadena, CA
Posts: 364

Bikes: Rivendel Sam Hillborne, SOMA San Marcos

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Steev
Cross levers do nothing to shift cables, they operate the brakes only.
Basically you unwrap the bars, disconnect the brakes cables and pull them back. Install the cross levers, cut the housings to fit, re-run brake cables and re-wrap bars.
I'd like both sets of brakes to be operational. I've seen other cross bikes with the shifter/brake/hood assemblies that work independently of the cross levers (and vice versa). I'd like to be able to do that with my bike.

For clarity purposes, I'm just wondering if I should be running both sets of brake lines together...or next to each other....or have the cross levers attach to the shifter/brake assembly brake lines.
buck65 is offline  
Old 12-22-08, 04:22 PM
  #4  
Senior Member
 
Steev's Avatar
 
Join Date: Jul 2005
Location: Backwoods of Ontario
Posts: 2,152
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Cross levers go in-line with the brake cable coming from the shift/brake lever(hence the other name "interrupter levers). You will have both brakes operational. You can apply the brakes with either lever. The cross lever works by effectively lengthening the housing thus applying the brake, operation of the shift/brake lever is not effected.
Steev is offline  
Old 12-22-08, 04:38 PM
  #5  
cherish the day
Thread Starter
 
buck65's Avatar
 
Join Date: Jun 2006
Location: South Pasadena, CA
Posts: 364

Bikes: Rivendel Sam Hillborne, SOMA San Marcos

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
So should I try and wedge the "new" brake cables (from the interrupter levers) into the existing housings so they're side-by-side with the shift/brake lever cables? And then connect it to the link wires/cantilevers?

I'm guessing that I should also lube the new brake wires as to limit the amount of friction.
buck65 is offline  
Old 12-22-08, 04:53 PM
  #6  
Senior Member
 
DieselDan's Avatar
 
Join Date: Mar 2003
Location: Beaufort, South Carolina, USA and surrounding islands.
Posts: 8,521

Bikes: Cannondale R500, Motobecane Messenger

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Likes: 0
Liked 1 Time in 1 Post
You are making this way harder then it needs to be. Follow everyone's advice and install them.
DieselDan is offline  
Old 12-22-08, 05:04 PM
  #7  
Senior Member
 
Join Date: Feb 2008
Location: Oxnard, CA
Posts: 4,571

Bikes: 2009 Fuji Roubaix RC; 2011 Fuji Cross 2.0; '92 Diamond Back Ascent EX

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 16 Times in 12 Posts
One wire goes from the original brake lever, through the new brake lever and then to the brake set. No other wire needed.
CACycling is offline  
Old 12-22-08, 05:11 PM
  #8  
Senior Member
 
Join Date: Jul 2008
Location: ABQ, NM
Posts: 1,152

Bikes: Neuvation F100, Surly Cross Check, Van Dessel Holeshot

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I dont know if this will clear up any confusion, but the cross levers work independently of the brifters, albeit on the same brake cable, by pushing on housing rather than pulling cable to actuate the brakes.
jonestr is offline  
Old 12-22-08, 06:12 PM
  #9  
Boomer
 
maddmaxx's Avatar
 
Join Date: Nov 2003
Posts: 7,214

Bikes: Diamondback Clarity II frame homebuilt.

Mentioned: 106 Post(s)
Tagged: 0 Thread(s)
Quoted: 16098 Post(s)
Liked 1,457 Times in 1,064 Posts
you will get a set of instructions with the cross levers when you buy them. You need to know the following things.

1. Cross levers come in 3 different sizes. 31.8mm for the bulged area (near the stem) for an oversized bar, 26mm for the bulged area of a standard non oversized road bar and 24mm if you wish to install them further outboard on the smaller diameter of either bar. The last option is useful if your stem clamp area tapers quickly on either side of the stem leaving very little mounting area.

2. Cross levers (also called interrupter levers) operate in the middle of your existing brake cable, they do not use a separate cable of their own. You mount the levers on the bars where you want them, pull the inner wire out of the housing, cut the housing at the entry point to the cyclocross lever, put the housing into the cyclocross lever from both sides (the part of your original housing on the hood side of the system into one side of the lever and the part of the original housing going to the brake into the other), rerun the inner cable and done.

After you set up the brakes again, the brake lever at the hoods will pull on the inner cable and the brakes will work. The cyclocross lever will push on the housing (making the housing longer is the same as making the cable shorter) and again the brakes will work.

Get some pictures of cyclocross levers installed and this will seem as easy as pie to you.
maddmaxx is offline  
Old 12-22-08, 07:13 PM
  #10  
Senior Member
 
Nota's Avatar
 
Join Date: Aug 2008
Location: Omnipresent
Posts: 241

Bikes: a celeste green one; 5.5 Madone

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
They're "wired in series" with your standard brake cables.

I just had these done last week on my Dura Ace equipped road bike.

The installation is fairly straightforward, but even so, getting everything just right (ie...sufficient opperational clearances on each side so the cables aren't binding on each other) can be a bit of a booger.

see for yourself:

Last edited by Nota; 08-22-09 at 08:52 PM.
Nota is offline  
Old 12-22-08, 09:24 PM
  #11  
cherish the day
Thread Starter
 
buck65's Avatar
 
Join Date: Jun 2006
Location: South Pasadena, CA
Posts: 364

Bikes: Rivendel Sam Hillborne, SOMA San Marcos

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks for all of the great responses; I finally understand. Just purchased a set for each of my bikes this evening!
buck65 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.