Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Senior Member
    Join Date
    Oct 2006
    Location
    Granite State
    My Bikes
    Trek 800, Cannondale M300
    Posts
    221
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Replacement 6-speed shifter for mountain bike

    Hi All,

    I have an old Trek 800 mountain bike that has a three chainring crank, and a 6 speed freewheel. The index shifters for the rear derailleur seem like they are about to fail. I think some part has worn down in it, and often when I press the lever to shift to a larger cog, there is no tension on the lever.

    I'm going to inspect the shifter some time soon, but in the event that I can't fix it, can anyone recommend a good set of replacement shifters for my bike? Most of the stuff that I've seen online is for 8 and 9 speed bikes. I haven't found any 6 speed index shifters except for some grip shifters.

    Where can I find some good 6 speed mountain bike/hybrid shifters? Does anyone make friction shifters for mountain bike/hybrid style upright bars?

    Thanks in advance.

  2. #2
    Last one to the top... Little Darwin's Avatar
    Join Date
    Jul 2005
    Location
    Wilkes-Barre, PA
    My Bikes
    Many
    Posts
    6,798
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you do Ebay, there are several 6 speed options, and friction as well for thumb shifters.

    Go to bicycling and search on "thumb" to browse through.

    However, with no pressure on your shifter, it sounds to me more like a cable problem... If you replace the cable, my guess is that things will be fine.

  3. #3
    Senior Member
    Join Date
    Oct 2006
    Location
    Granite State
    My Bikes
    Trek 800, Cannondale M300
    Posts
    221
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks Little Darwin. I just searched ebay and found several 6 speed shifters listed.

    I am going to check my cables this weekend. I'm wondering if the cold temps (around 27 deg F this morning) has something to do with the problem.

  4. #4
    biked well well biked's Avatar
    Join Date
    Jul 2005
    Posts
    6,712
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cynergy View Post
    I'm wondering if the cold temps (around 27 deg F this morning) has something to do with the problem.
    It's very possible. The factory lube inside the shifter pod has likely turned to a very thick, gunky substance over the years, and the cold temps will definitely affect this. I would try a thorough flushing with WD-40 inside the pod, working the shifters as you do so, and see if that doesn't free things up. The WD-40 treatment is a pretty standard method for getting old index shifters that have become stubborn to begin working again-

  5. #5
    I like bikes dr.raleigh's Avatar
    Join Date
    Nov 2007
    Location
    Butler PA
    My Bikes
    Raleigh M20
    Posts
    130
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You can always use these, Shifters
    Trek TR30 BMX
    2004 Raleigh M20
    1976 Ross Eurotour
    Walmart mtb bike x2
    Old Huffy mtb bike
    Couple old single speeds

  6. #6
    Senior Member
    Join Date
    Oct 2006
    Location
    Granite State
    My Bikes
    Trek 800, Cannondale M300
    Posts
    221
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks all for the replies. I'll try the WD40 trick. I think it might be temperature related, because the problem seems worse when it's cold outside.

    Dr. Raleigh - thanks for the link. I really like friction shifters. I recently bought a new Trek 520 touring bike and I run the bar-end shfiters in friction shift mode and really like it.

  7. #7
    Senior Member
    Join Date
    Oct 2006
    Location
    Granite State
    My Bikes
    Trek 800, Cannondale M300
    Posts
    221
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    well biked - thanks for the tip. i just sprayed the problem shifting pod with WD40, let it soak in, then tipped the bike so I drained the excess WD40 and it seams to shift much better/more reliably. I will try and ride a lot this Turkey weekend and test it out. When I peered inside the shifting pod, it was grimy and much dirtier than the other pod.

  8. #8
    I like bikes dr.raleigh's Avatar
    Join Date
    Nov 2007
    Location
    Butler PA
    My Bikes
    Raleigh M20
    Posts
    130
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    After you get it cleaned out with WD40 you might want to put some oil in there because WD40 doesn't last as a lubricant.
    Trek TR30 BMX
    2004 Raleigh M20
    1976 Ross Eurotour
    Walmart mtb bike x2
    Old Huffy mtb bike
    Couple old single speeds

  9. #9
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,130
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dr.raleigh View Post
    You can always use these, Shifters
    I've seen them beford. Have you ever tried them? I'd be tempted to buy them just for the bases if you could swap out the shifter for another brand of thumb shifter or barcons.


    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •