tailwindchaser

I have a box of unidentified cassettes and an assortment of loose position 1 and 2 cogs. Is there a reliable method to determine which cogs go with which cassettes? I know that these would be from 7, 8, 9 speed mtb. So far they all have 6 fixed cogs. I've tried to measure distance between cogs, allowing for thickness but results have been inconclusive. I'm hoping there is a definitive way to put these back together. Thanks for your ideas.

blamester

Use a spacer as a guide. Put it between the cogs to determine the speeds. And then trial and error with the loose cogs
If it shifts good it's good.

Iride01 

This certainly isn't complete, but it does give some of the thickness and spacing data for cogs back in the day.

https://www.sheldonbrown.com/cribsheet-spacing.html

So if you have calipers or a micrometer to measure them you might get some idea.

Me, I'd just sharpen them and use them as throwing stars for target practice when I'm bored. <grin>

tailwindchaser

thanks for the help. The spacer idea worked well on the fixed portion of the cassette (I used allen wrenches) Thanks Blamester. I think I have found 9 and 10 speeds in this mix. Is it still 2 loose cogs on those? The throwing star idea still looks attractive tho. Thanks again.