Abstract: A spring leaf of composite fibre reinforced synthetic resin material has an attachment member secured at an end thereof by means of a clamping band which fits about the end of the spring leaf and an extension portion of the attachment member to clamp them together. In one form the attachment member is an eye-end with opposed flanges which lie on the spring leaf and each of which is clamped to the leaf by a clamping band secured by a pin. In an assembly having two superimposed spring leaves one clamping band has a depending portion in which the end of the lower leaf is slidingly located. In another form the attachment member is an eye with a tang having an enlarged end which is received into a complementary recess in the end of the spring leaf and retained therein by the clamping band.