
A better helmet than its predecessor, the Shoei J-Force IV continues to be one of the best open-face helmet available on the market. The tagline is ‘Compact & Lightweight’ with lots of enhancement on many areas. The design is different than the J-Force III with the introduction of side outlet that is presented in hexagon honeycomb pattern.

J-Force IV has the improved aerodynamic performance that gives is 5% less lift and 2% less drag as compared to the J-Force III. At the speed of 100km/h, J-Force IV is quieter than the J-Force III as shown on the graph above. (more…)






