I don't know what it fits, maybe :
Pantah 600 650 ?
Paso 750 SS 906 ?
900SS ?
Multistrada 1200S ?
Panigali 899 ?
Monster 620 ?
not sure.
Little End bush Diameter 18mm approx
Big End (without shells) Diameter 44mm approx
Approx 110 between centres
Alternatively would make a great office paperweight !