Pinnacle koto 16 inch kids bike pinnacle childrens bikes are for all round use and maximising fun they are light and simple ideal for parents who want small proper bikes that help children get the most out of cycling at an early agepinnacles simple aim with childrens bikes is to make riding easy and fun our 16 bike uses a lightweight aluminium frame with aluminium rims to keep things light for the smaller rider or a carrying parent quality bearings in hubs cranks and headset to gi