Originally Posted by
iain.dalton
I have:
1 14t (with spacer)
1 13t (with spacer)
5 12t (with spacer)
1 11t (with spacer)
I believe you mean the cog and spacer are all one piece. These are all first position cogs but could be from any speed from 7 to 10.
Originally Posted by
iain.dalton
1 18-21-24-28-32
2 21-24-27
1 21-23-25
The 18x32 is almost certainly a 9-speed and came from an MTB cassette. The 21x25 and 21x27 can be either 9-speed or 10-speed.
Originally Posted by
iain.dalton
1 small fat spacer (not sure the purpose)
This is probably a 4.5 mm spacer to allow a 7-speed cassette to be in stalled on an 8/9/10-speed freehub body.
As mentioned,you need to buy or borrow a good caliper or, better yet, a micrometer.