Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

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.

User Tag List

Thread Tools Search this Thread
Old 05-28-08, 01:30 PM   #1
my nose itches
Thread Starter
starla's Avatar
Join Date: Mar 2008
Location: Temple, Texas
Bikes: 1986 Specialized Stumpjumper, 2013 Redline Conquest Disc
Posts: 579
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Upgrading from friction shifters to indexed

I recently acquired an '87 Stumpjumper and am considering upgrading from the friction shifters to indexed shifters. Can anyone give me a rough idea how complicated and how expensive this might be? I want to know if it's a possible DIY for me since I kind of bought the bike as a project bike and would like to learn more about bicycle mechanics.
starla is offline   Reply With Quote
Old 05-28-08, 01:48 PM   #2
Little Darwin
The Improbable Bulk
Little Darwin's Avatar
Join Date: Jul 2005
Location: Wilkes-Barre, PA
Bikes: Many
Posts: 8,401
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
At the highest level. a new freewheel, rear derailleur, shifter and cable/housing will get you rear indexing.

The freeqwheels with the advent of indexing have specially shaped teeth to assist the shifting (either twisted or ramped).

The manufacturer of the derailleur should match the shiftershould match the freewheel (although some compatability across manufacturers exist, the easiest thing to do is keep them the same). The number of "speeds" should match between the shifter and the freewheel, the derailleur doesn't usually matter.

If you choose to replace the rear wheel for a freehub/cassette, then substitute the term cassette for freewheel in the above. Freewheel is assumed for friction shifting system, since I don't recall anyone mentioning any friction shifting cassette systems.

Indexing on the front is the same without the need for a freewheel change... although updating to chainrings with ramps and pins can help improve shifting performance.

Are you hoping to increase the number of gears as well?

How many gears do you have now? How many do you hope to have?
Slow Ride Cyclists of NEPA

People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
Little Darwin is offline   Reply With Quote
Old 05-28-08, 03:06 PM   #3
Bill Kapaun
Senior Member
Bill Kapaun's Avatar
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Bikes: 86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
Posts: 10,098
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 392 Post(s)
Does this have the SunTour shifters & Free wheel?
Some 87 "Jumpers" are listed with Index shifting-
Bill Kapaun is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -6. The time now is 08:43 AM.

  • Ask a Question
    get answers from real people!
Click to start entering your question.