In 1984, Shoei introduced the RF line of helmets, and since that time, the RF series has become one of the Japanese brand?s most popular lids. For over three decades, the RF lineup has been refined and with each update comes new technological and functional improvements. Shoei describes this evolution in the RF helmets with the Japanese term Kaizen, which is translated as ?change for the better? or ?continuous improvement,? and it?s more than evident in the new Shoei RF-1400 full-face motorcycle helmet. 

We?ll have a comprehensive review of the new Shoei RF-1400 soon, but for now, we?ll whet your appetite while we get some miles in our test unit. 

The Shoei RF-1400 is the latest addition to the RF family and a follow-up to the RF-1200, which was introduced in 2013. To that end, the RF-1400 boasts some critical improvements over the previous generation in terms of aerodynamics, comfort, noise and vision.
Shoei engineers refined the shell-shape of the RF-1400, and while it is visually reminiscent of RF-1200, the improved aerodynamic design is said to reduce drag by 4% and lift by 6%. A reduction in drag is always welcome as it lessens fatigue on the rider?s neck when riding. 

Ventilation is optimized, thanks to a relocated forehead vent that now features an additional intake hole to increase positive airflow. Also, the exhaust vents are enlarged, improving the helmet?s ability to shed warm air. All told, the RF-1400 features six adjustable a...