Yes, there were real benefits to the fully enclosed disc brakes seen on some Honda motorcycles in the 1980s. The fully enclosed design of the disc brakes provided several advantages over traditional open-style disc brakes:
Improved Performance: The enclosed design helped to minimize the buildup of dirt, dust, and debris on the braking surfaces. This reduced the chances of brake fade and improved overall braking performance, especially in adverse conditions. The enclosed design also helped to maintain consistent braking performance over extended periods.
Protection from Elements: The enclosed design provided protection to the brake components from external elements such as water, mud, and road grime. This helped to prevent corrosion and premature wear, leading to increased longevity of the brake system.
Aesthetic Appeal: The fully enclosed disc brakes gave the motorcycles a sleek and streamlined appearance. This design choice was often favored for its visual appeal, enhancing the overall aesthetics of the motorcycle.
Reduced Noise: The enclosed design helped to minimize the noise produced during braking. The enclosed brake system dampened vibrations and reduced the likelihood of squealing or other unwanted noise, contributing to a smoother and quieter braking experience.
It's important to note that while the fully enclosed disc brakes offered these advantages, they were not exclusive to Honda motorcycles. Other motorcycle manufacturers also adopted similar designs during that era to provide similar benefits.