If you’re only looking for a lock to protect your bike at home or at work, then the best choice is a thick, high quality chain lock, like Kryptonite - Keeper 785 Integrated Chain. Because they’re flexible, they’re usually much less complicated to transport than U-locks. Kryptonite  offers a limited lifetime...

Kross Hexagon Mini is the flagship model of the Junior line of Kross bikes. Very light junior bike with aluminum frame and 20 "wheels. High-class components guarantee easy use and comfort while driving. Kross bikes are high quality at an affordable price.