My German is not good enough for this, so must do it in English.

Has anyone had experience with taking bikes on Aegean Airways. We're flying London to Crete and read their website but are confused on excess baggage fees.
What is 1.5% of the IATA fare.
Do we pay the 55euro just for having a bike. We will travel with a bike each at 20kg plus a 20kg bag between 2 of us.

Any idea the excess cost???