6 speed cassette?
11-27-15, 11:07 AM
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6 speed cassette?
My old Schwinn Super le Tour does not have a freewheel but a 6 speed cassette with the last cog acting as a lock nut. Are these still available? And are they called cassettes?
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11-27-15, 11:58 AM
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Yes, it's a 6s cassette, and yes, available from used bikes and from vendors on Ebay and etc.
Using the last threaded cog (hopefully not worn out, but often fixable if it is) to secure the stack, one can substitute the remaing five larger cogs for newer Hyerglide parts.
Getting the HG cogs to fit involves 10-15 seconds cutting with a 1/4" round file, holding the cog in a vise and just cutting down the one spline that is wider than the others. Really it's a super-simple process once one has removed the threaded or riveted pins from the HG cogset that holds them together (the pins aren't needed from that point on but can be re-inststalled if they are of the threaded variety).
Others have reported fitting 7s cassettes onto the 6s body using the threaded cog to hold it together, but there is a minimum of threaded engagement that should be preserved and I haven't seen that to be sufficient to be entirely trustworthy or safe enough to recommend(!).
Some 6s cassettes were apparently factory-fitted to later freehubs with 7s width, so in those cases a 7s cassette will still allow some minimum of a few full turns of threading, or will enable use of a proper HG locknut with all seven HG cogs IF the end of the freehub body is internally threaded (these would also have the single wider spline accommodation for HG cogs to slip right on without modification).
Using the last threaded cog (hopefully not worn out, but often fixable if it is) to secure the stack, one can substitute the remaing five larger cogs for newer Hyerglide parts.
Getting the HG cogs to fit involves 10-15 seconds cutting with a 1/4" round file, holding the cog in a vise and just cutting down the one spline that is wider than the others. Really it's a super-simple process once one has removed the threaded or riveted pins from the HG cogset that holds them together (the pins aren't needed from that point on but can be re-inststalled if they are of the threaded variety).
Others have reported fitting 7s cassettes onto the 6s body using the threaded cog to hold it together, but there is a minimum of threaded engagement that should be preserved and I haven't seen that to be sufficient to be entirely trustworthy or safe enough to recommend(!).
Some 6s cassettes were apparently factory-fitted to later freehubs with 7s width, so in those cases a 7s cassette will still allow some minimum of a few full turns of threading, or will enable use of a proper HG locknut with all seven HG cogs IF the end of the freehub body is internally threaded (these would also have the single wider spline accommodation for HG cogs to slip right on without modification).
Last edited by dddd; 11-27-15 at 12:03 PM.
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