The Federal Rubber bar end is one of those small components you only start appreciating once it is missing from your bars. The thicker rubber construction absorbs impacts better during crashes and helps protect the ends of your handlebars from getting destroyed during street riding.
The push-fit system keeps the bar end securely in place, so it does not constantly loosen or rotate during harder sessions. The wider flange distributes impacts more effectively, helping protect both the grips and the handlebar ends over the long term.
Thanks to the denser rubber compound, it does not feel like cheap hard plastic. Instead, it has that solid, calm character that fits perfectly on a proper street setup. Federal did not overcomplicate anything here, they simply created a durable and purpose-built bar end designed for real riding.