The AUSTRALIAN shafts are equipped with 3 spurs for loading instead of the two common notches. These rods are also constructed from precipitation hardening martensitic 47HRC stainless steel. This type of material optimally combines hardness, toughness and elasticity.

The Extreme Australian shafts are equipped with a completely retractable barb. The Ø 6.35 - 6.5 - 7 - 8 versions mount heavy 47HRC fins. There are 3 spurs for loading and they are fixed to the body of the shaft by "tig" welding (i.e. without the addition of other material); their particular design and shape allow easy loading.

The rod has no reductions in section and gains enormously in strength and is able to withstand strong stresses. The guarantee of the solidity of these spurs is given by the crash tests carried out at a traction of about 200 kg per spur.