Youngsters grow up very fast!  They can quickly outgrow their favourite playthings in size, in their development and their imagination.

Wheeled toys and play bikes in particular rapidly lose their appeal as youngster's progress from four to three to two wheels.

Now however, Nottingham bicycle designer Tony Wayman has come up with an answer. His Quadra byke is a stable four-wheeled toy, a tricycle and finally, that all-important two-wheeler - all in one.

The secret lies in his unique patented multi-axle system, which allows Quadra to be rapidly configured from two to three to four wheels.

Not only does this give youngsters added play value, it also allows them to develop confidence and accommodates a degree of growth during those early years of 3-6 when they seem to be getting bigger by the day.

Parents can easily and speedily change the configuration of the wheels- no tools are necessary- to provide their youngster with a quad in the morning, a trike for the afternoon and a bike in the evening.

Quadra byke conforms fully to European and United States safety standards, from paint to a fully enclosed chain so no little fingers can get trapped. The unique axle system facilitates the use of highly efficient front and rear brakes, which not only enhance the visual appearance and play value, but they really work as well. Quadra byke's wide wheels give extra stability and its robust construction resists the inevitable knocks and bangs.

Available in Fire Red, Ice Silver, Kiss Pink and Wave Blue, the Quadrabyke is fitted with white plastic wheels mounted with EVA custom tyres. A soft padded saddle tops an adjustable height saddle pin and black handgrips and contrasting brakes and cables add to Quadrabyke's appeal.

The Quadra will retail at around ₤109.99inc VAT.