Thanks to Kotaro doing further investigation, we learned that his father is a former racer who disappeared all of a sudden. Because he just disappeared and that he is living in the mountains, there is only one conclusion, Gorgom is somehow involved with this one. After Kotaro saved them from Gorgom's Mutants, we learned his history on how his family got involved with Gorgom. To sum it all up, his father was a former Gorgom scientist and that he created a bike known as the Road Sector. After learning that Gorgom has plans to use the bike for evil and that his son will be one of the riders, he plans not to give his creation to Gorgom. This leads to the death of the former Gorgom scientist and his daughter in-law. Guess it is no surprise that he ends up hiding in the mountains then.
As for its features, it has this special Attack Shield to protect the rider from hurting himself once it rams the machine in extreme speed. When Kotaro tested the machine without transforming, he was able to travel for 500km/h, something that normal motorcycles can't do. But the true test of its power is when during Kotaro transforms into Kamen Rider BLACK!
At the end, Kamen Rider BLACK saved the day and to make it more special, it seems that he defeated two Mutants in a single episode! What's more, we learned that the Road Sector has a lot of secrets. Guess we should wait for the next episode to see what are Road Sector's other features. Did I mention that Kotaro now is the official owner of Road Sector, making him one of those few Riders who have two bikes simultaneously during the course of his respective series?