9441 Kai's Blade Cycle

9441 Kai's Blade Cycle is a Ninjago set released in January 2012. It includes the Blade Cycle, Kai ZX, Rattla, and a small shrine for the Hypnobrai staff. Kai's Sword of Fire turns into the Blade Cycle.

Lego.com description:
Battle for the golden Hypnobrai staff with Kai’s Blade Cycle!

Race after Rattla on Kai’s Blade Cycle! Don’t let him get away with the Golden Hypnobrai staff and the anti-venom hidden inside! Can Kai defeat his mind-controlling menace with the Blade Cycle’s big blade attack? You decide! Watch out for Rattla’s hypnotic stare and tail as you battle for the prize! Includes Kai ZX and Rattla minifigures, Golden Hyponobrai staff and 2 ninja swords.

Building Instructions

 * 9441 Kai's Blade Cycle