I always used high zinc oils in my shared sump motorcycles, never a problem. Clutch worked well even after a decade.
It's friction modifiers I was always told to avoid in motorcycle oil.
My mistake. I was confusing extreme wear protection with friction modifiers. Sorry.I'm super excited to try this in my air-cooled Honda motorcycle. It's a blast to shift it at high rpms. The higher anti-wear additives in this oil are definitely needed in my application.