Yes! You can carry sporting items on Flybondi. You can purchase this service at additional charge when buying your ticket.
Your sporting items may not exceed 15 kg.
Its linear dimensions (height + length + width) may not exceed 250 cm. Keep in mind that this size will only be applicable if you pay the relevant charge for this service.
Remember that you should properly pack your sporting items (including your bike) in a special case that fully protects it.