The Destiny will suit girls of between 8 and 11 years old. At this age they suddenly get lots of gears - 21 in this case, which will mean they should be able to make it up any hill that competitive dad may wish them to tackle. A mountain style bike, so it comes with a comfy suspension fork, low step aluminium frame, fat tyres and a nicely finished frame with attractive graphics. Other alternatives include the MX24 or for a faster, lighter bike, the Dimension 24 is a great choice.