Advertise on Bikeforums.net



User Tag List

Results 1 to 2 of 2
  1. #1
    Senior Member
    Join Date
    Dec 2005
    Location
    Atlanta
    My Bikes
    1982 Schwinn Super Sport S/P, 1984 Miyata 610, 1985 Panasonic LX 1000
    Posts
    579
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Suntour MK II RD--Index?

    Has anyone had success getting a Suntour MK II GT (long cage) rear derailleur vintage 1982 to index? If so, how well?

    I'm about to update from a five speed freewheel to a Suntour XC Pro freehub with 7 speed cassette. Shifters are Suntour Command 2nd generation 7 speed currently set to friction mode. RD cable & casing are updated to those that came with the Command shifters. Campy downtube cable stop has an adjustor.

    Nothing whatsoever wrong with friction, I'm just curious. If by happenstance the setup could be adjusted to index perfectly I might be inclined to give it a go.

  2. #2
    Senior Member masi61's Avatar
    Join Date
    Oct 2005
    Location
    SW Ohio
    My Bikes
    Puch Marco Polo, Saint Tropez, Masi Gran Criterium
    Posts
    989
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Give it a try and let us know if it works. Most of the indexing will distances will be determined by the shifters, when you change the Command levers to index mode. And you're using the XC-Pro hub with the correct cassette, so you're almost home. I'm thinking there's a strong possibility that the rear derailleur "pull" on a pre-index SunTour is likely the same as a later indexing model. And like you said, you have the fine cable adjust that you'll need on the downtube, so technically, the RD won't need one. Even if it doesn't work well you will have just set up all the elements to the real deal, you can just continue to run it in friction mode while you source a SunTour indexing RD that will be better. The supply of XC-Pro RD's seems scarce and ebay-ers can get pretty competetive going after these driving prices on new ones over $100 at times, but they made different flavors of Accushift compatible rear derailleurs, Yellow Jersey has a stash of nice, NOS SunTour "X-1" long-cage, black anodized rear derailleurs for $49 each. I have one on my Puch running in 7 speed index mode and it runs like a champ. I imagine that if you start looking that there may be any number of XC-pro, XC-9000, XC-7000, XC-Expert, XCE, variants out there that would be suitable. Hardly anyone is using this stuff anymore, which you could use to your advantage I suppose.

Posting Permissions

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