This is a brand new set of suspension rear shock with covered springs.

Fits: Triumph 3TA 350cc Twenty one from 1959 on
                      3TA and T90 from 1963 on
                      5TA Speed Twin 1959 on
                      5TA and T100SS from 1963 on

Spring rate: 132 Ibs.
Eye to Eye Length: 11.9"
Bushing Dimensions: Top and Bottom 24 mm long
Inside Diameter: 0.381 (9.5 mm)