I wouldn't worry too much, I have routinely done about 50-60 km/h on a motorized bike and had 0 issues. Always had the best disk brakes I could buy though.
1. At 60 km/h you are going the speed of a car but car drivers don’t expect you to be going that fast and as a result aren’t wired to look for you. Doesn’t matter how fast you were going when a car going 60-90 km/h didn’t see you and ran you over.
2. Brakes are only half the equation. If your tires start slipping your brakes will lock up and then you go splat.
3. If you do happen to get off at 60 km/h you will have road rash that will take off large chunks of skin even if you wear an armored jacket and armored gloves. In spandex you’ll be looking like Deadpool pretty quickly.
4. Your tires will heat up pretty quickly at these speeds. That will affect how they handle quite a bit.
I certainly wouldn't casually ride the shoulder of a US highway at 35 mph.
Motorbikes are certainly louder which IMO why we should ban motorbikes altogether. I hate visceral hate to them.
Your best bet is to have all your clothing match your bike, Power Rangers style, to increase your chances. And lots and lots of very bright lights. One little handlebar mounted light is going to look like a reflection or a flashlight.
I only road residential roads and bike paths, planned my route carefully to avoid highways. Key things are to take the lane if you can do the speed limit and only give it up if safe to do so. Avoid driving close to parked cars that will open their door and kill you. Watch left turns in front of you.
The thing with riding that on a bike path was that I had no concerns slowing down amongst pedestrians or on blind corners as it was no effort to get back up to speed. I was less inclined on my road bike due to the effort. Road bikes can get up to that speed, had a few that came close to pacing me. I understand the sentiment but I had zero incidents in four years of commuting. I was courteous, used a bell. Half my ride was up hill on the path and it did 30km/hr there. Everyone went pretty fast down of course.
I'll admit, I did enjoy passing spandex on expensive bikes with my beater bike wearing jeans. This was a decade ago when ebikes were not at all a thing.
Many bike paths seem to discourage slowing down for junctions by putting them in dips - the opposite of how some train stations are on a hump as "gravitational regenerative braking".
45-50km/hr idea fairly easy though with a 48 volt system.
>If you do happen to get off at 60 km/h you will have road rash that will take off large chunks of skin even if you wear an armored jacket and armored gloves Wouldn't that happen with a motorcycle too? I don't see your point