For most international shipments that are gifts, you will have to provide an invoice or other proof of value. 

When you ship a bike or gear that has been gifted, your shipment will be classified as "Commercial." Duties, taxes & fees, based on item value, will be calculated while placing your order on our website. Customs will not accept values of $0 or trivial values, even for gifts between family members. 

See also: How do I upload photos and other required additional information?