The best-selling model in the 24" bike category has long been the Author A-Matrix 24. It is designed for children aged 6-9 years and 125-140 cm tall. This versatile model can handle family rides at a relaxed pace as well as more adventurous off-road trails in the countryside. It's not afraid of the occasional sporty engagement in children's races either. It can do all this at a reasonable price, making it the ideal choice for those who prefer an excellent price/performance ratio. It has a lightweight duralumin frame and a suspension RST fork with soft spring. For easier handling, the model has a single-speed derailleur at the front and 8 speeds at the rear, all controlled by a classic Shimano Revoshift rotary derailleur. Two colour options, fork and saddle to match the rest of the bike. High-quality Tektro brand brakes ensure safe stopping. That's one of the most popular kids bikes in a nutshell.