Complete frames are heavy but we do subsidise the cost of freight Australia wide. Freight is calculated on the basis of a $15 flat fee plus 10% of the purchase cost. So $120 final value of frames would cost $27 shipping. We had to raise the flat fee (from $10) to $15 as freight is so expensive in Australia, and sometimes it is costing us more than double what we charge. You are also welcome to organise your own courier pickup with us. For large orders, we will always adjust the freight rate if it is much higher than the actual cost, but usually it does seem to be about right or in the customers favour still, because of the weight.
When possible we use Australia Post, but we use TNT for larger orders that are outside of Australia Post size regulations.