Join Date: Dec 2005
Bikes: 1982 Schwinn Super Sport S/P, 1984 Miyata 610, 1985 Panasonic LX 1000, Centurion Pro Tour 15 1983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by Frickencrazy
To go along with the shift commands (7 speed) I went and found a Suntour XC Sport 7000 rear derailleur. Apparently this combo should work. My problem is I cannot find an Suntour 7 Ultra freewheel. I tried ebay but lost the auction by $1 and the next available one is like $69. So I'm debating using a Shimano HG 7 Speed 14-28T or a Nashbar 7 Speed Freewheel 13-32. Thoughts? Could the cog spacing of the Shimano or Nashbar effect the Accushift indexed shifting feature by much?
1. For best Accushift results, use an Accushift Plus derailer manufactured in 1989 to 1992. Earlier ones work, but they don't have the double pivot design that Shimano sued Suntour over.
2. Freewheel. You MUST pay attention to spacing. With an Accushift 7 speed shifter mated to an Accushift derailer, either
(a) use any Suntour 7 cog freewheel requiring a 4 notch removal tool, OR
(b) custom space your Shimano freewheel or modern Shimano Hyperglide cassette.
The Accushift spacing center to center starting from the smallest cog is 5.3, 5.3, 4.8, 4.8, 4.8 and 4.8mm
Here is a link explaining how to construct an Accushift compatible custom spaced Shimano Hyperglide cassette Help with late Suntour Compatibility
As to custom spacing a freewheel--it's theoretically possible but outside my experience.