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

Cable pull of the SRAM Force 1 Rear Derailleur

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.

Cable pull of the SRAM Force 1 Rear Derailleur

Old 06-02-17, 10:52 PM
  #1  
scarleton
Senior Member
Thread Starter
 
Join Date: Jul 2013
Location: Greater Cincinnati, Ohio
Posts: 258

Bikes: Lynsky R240 w/ Ultegra Di2

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Cable pull of the SRAM Force 1 Rear Derailleur

If I cannot find the right SRAM shift-break control to work with both SRAM Force 1 Rear Derailleur and cantilever brakes, I am considering useing the Dia-Compe 11s Road Downtube Shifters. Velo-Orange's web site says this so that you can determine if the derailleur will work:

To calculate the amount of total cable pull your drivetrain requires use the following formula:
total cable pull = cable pull of intended shifter * (s - 1), where s is the number of speeds of your cassette. If the total is less than 50mm, these shifters should work.


So I am wondering what is the cable pull on the SRAM Force 1 Rear Derailleur when using a 10-42 cassette. Anyone know?
scarleton is offline  
Old 06-03-17, 08:23 AM
  #2  
reddog3
Senior Member
 
Join Date: Nov 2010
Location: River City, OR
Posts: 672
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Why not use the compatible Force shifter?


https://www.universalcycles.com/shop...&category=2975
reddog3 is offline  
Old 06-07-17, 02:12 PM
  #3  
scarleton
Senior Member
Thread Starter
 
Join Date: Jul 2013
Location: Greater Cincinnati, Ohio
Posts: 258

Bikes: Lynsky R240 w/ Ultegra Di2

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
That is an option, but it is $100 more than the downtube shifter and more importantly, I think it would be very cool to have a 1x11 with a downtube shifter, not something you see every day
scarleton is offline  
Old 06-08-17, 08:56 PM
  #4  
bluehills3149
Senior Member
 
bluehills3149's Avatar
 
Join Date: Jun 2014
Location: Brooklyn USA
Posts: 227

Bikes: depends what week it is..

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 69 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
These shifters do not look like they are indexed so it's find and grind which is OK but be aware of what they are. But - I'm not sure why you can't use any old 1970's downtube shifter as typically they will keep pulling cable as you pull the lever back until it hits the frame. From this well-used site,
A guide to rear shifting | Cycling UK
an old shimano 6spd shifter pulls 3.2 mm per shift and and an SRAM 11spd (see here):
Art's Cyclery Blog Science Behind the Magic | Drivetrain Compatibility
pulls 3.1mm. So try and get an old school downtube friction shifter and give it a try - I know I have quite a few in my old parts bin so 'm sure most LBS' do too. But basically you want an old shifter that pulls a lot of cable per shift so it does not need too much arc - shimano 6spd (with SIS turned off) may be OK or some perhaps old Shimano 600 arabesque?
bluehills3149 is offline  
Old 06-09-17, 06:48 AM
  #5  
edthesped
Senior Member
 
edthesped's Avatar
 
Join Date: May 2010
Posts: 714
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 163 Post(s)
Likes: 0
Liked 1 Time in 1 Post
As I asked myself why... I thought of how badly I wanted one of these when I was a kid. I hope you find something that works...

edthesped is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
milosbn
Classic & Vintage
2
03-06-13 11:55 PM
Double D
Road Cycling
5
02-05-08 07:41 AM
Trojanfan
Classic & Vintage
36
10-03-06 09:52 AM
Desp
Mountain Biking
4
08-16-06 07:03 PM

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


Thread Tools
Search this Thread

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.