Ressort central de moto (ressort de compression)
Triumph Twenty one 350

Triumph Twenty one 350 3TA 1957 Triumph Twenty one 350 3TA 1958 Triumph Twenty one 350 3TA 1959 Triumph Twenty one 350 3TA 1960 Triumph Twenty one 350 3TA 1961 Triumph Twenty one 350 3TA 1962 Triumph Twenty one 350 3TA 1963 Triumph Twenty one 350 3TA 1964 Triumph Twenty one 350 3TA 1965 Triumph Twenty one 350 3TA 1966