The nationally acclaimed and award winning HKS KETTRIKE® HAPPY® AIR NAVIGATOR™ simply is the smoothest, safest and most prized tricycle ride available.  This tricycle continues the KETTLER® tradition by being the Best of the Best.   Our customer’s ultimate compliment is that our trike is “built like a tank.”  KETTLER®’s team of certified engineers is in constant pursuit of perfection to incorporate the latest in safety, innovation and quality in our products. This is well documented by numerous patented and exclusive tricycle features from KETTLER®.  The HKS Kettrike® Happy® Air Navigator™ is well worth the investment in order to provide your children and grandchildren many years of safe and enjoyable triking.  When you invest in KETTLER®, you invest in peace of mind for present and future generations.
— In a March 2013 survey, two out of 13 retailers told TDmonthly that the Happy Navigator is their best selling ride on toy.