5 -  Shimano CS 6400 UG  cassettes  ( UG Specific Fit )..

 3 /  7 Sp.   14.15.16.18.20.22.24.   &  2  /  6 Sp.   13.14.15.16.17.18

Suitable for use with 1980's 7 Speed  Uniglide Freehub ( 1051 / 6400 / Sante / MT 60 . XT 730 - 7 Speed UG Etc )..

Threaded top Sprocket - External thread type UG Series hub...

Top cog - Thread diameter - Approx 34mm...