Pay in 4 installment payment RoyalBaby has opened the pay in 4 installment payment function, which lets you split your purchase into four equal installments to be paid every two weeks, with the first due at checkout. For example, if your purchase a RoyalBaby Bike costs $200, you would pay $50 at checkout. The three remaining $50 payments would each be billed to your debit or credit card every two weeks until you’ve paid the full $200. No interests. No fees. No-hassle payment. Come and enjoy riding with RoyalBaby kids bike. shop now