71783 : Kai's Mech Rider EVO

Little builders aged 7+ and fans of cool vehicles can stage their own good vs. evil fantasy showdowns with this action-packed Kai’s Mech Rider EVO (71783) playset. It features a posable mech and a cool motorbike, which can be upgraded into a bigger model by adding golden side panels and a large golden blade.
 
This building set includes 4 minifigures: Kai and Nya, both armed with swords, Bone King, with his own sword, and Bone Hunter, with a bone mattock and a sword. Forsucceeding in their challenge, kids are rewarded with a collectible Focus banner that can be displayed on the ninja motorbike.
 
Play and display – Measuring over 3.5 in. (10 cm) high, 9.5 in. (25 cm) long and 3.5 in. (9 cm) wide, the motorcycle can be displayed by passionate ninja fans between playtimes