If you are going to convert an Old Mountain bike ... Get a decent rear sprocket, the on-one cogs are pretty decent, the cheapy gusset ones I had load of chain skips with.
If you have a 7 speed free hub body (like mine) I am pretty sure a lot of kits won't fit, mine has about 7 or 8 individual spacers so it will fit anything, also allows you to tweak the chain-line easily.
My beast,
If you are going to convert an Old Mountain bike ... Get a decent rear sprocket, the on-one cogs are pretty decent, the cheapy gusset ones I had load of chain skips with.
If you have a 7 speed free hub body (like mine) I am pretty sure a lot of kits won't fit, mine has about 7 or 8 individual spacers so it will fit anything, also allows you to tweak the chain-line easily.