Orbea bicycles are expensive. Their new Grow series for kids is also expensive but will partially counter the high price by adjusting, expanding and growing with our kids. So far, Orbea has a pedal-less Grow 0 model for 1.5 – 4 year olds, the Grow 1 bicycle for 2.5 – 5 year olds, and the Grow 2 models for 4 – 9 year olds that comes in geared (7V) and un-geared (1V) versions. With the Grow 1 & 2, you can adjust the frame length plus the seat and handlebar height.

Although their price is on the high side, $235 (Grow 0) to $340 (Grow 2-7V), all Orbea bikes come standard with a lifetime warranty which will come in handy if you only have one kid now but are planning on having 5 or more. [Treehugger.com]