from the event info package.....
Rider Swaps and Category ChangesAs of Friday 15th April, no further changes will be accepted by the Max Adventure staff via email or over the phone.Further entry transfers, category changes and downgrading to the 50km will only be accepted at registration on the Saturday (30th April) before the event. The new rider must present the original receipt and a letter from the current incumbent requesting race officials to transfer the entry to the new rider. Entry transfers at registration will incur a $20 admin fee. No transfers will be accepted on race day. See the designated marshal in charge of rider changes.