I have some spare spacers (from dismantling old cassettes) if you want to use them instead of a specific kit?
You can then either choose which one cog from your cassette you want to use, or better get a DX cog, or even a better cog which is less likely to damage the aluminium freehub body...
there is a guy selling some bits from singletrackworld
If you buy a kit i'm not sure it will fit on a 7-speed cassette...?
Some kits consist of many smaller spacers rather than just 2 big ones (e.g. Gusset after link) and I'm sure you could get those to work more easily if any fettling is required.
I have some spare spacers (from dismantling old cassettes) if you want to use them instead of a specific kit?
You can then either choose which one cog from your cassette you want to use, or better get a DX cog, or even a better cog which is less likely to damage the aluminium freehub body...
there is a guy selling some bits from singletrackworld
If you buy a kit i'm not sure it will fit on a 7-speed cassette...?
Some kits consist of many smaller spacers rather than just 2 big ones (e.g. Gusset after link) and I'm sure you could get those to work more easily if any fettling is required.