I abuse my TU250 every time I ride it.
Red line is at 9500 rpm where the rev limiter kicks in, and I often bounce off that, and normal operation has the motor at high rpms wide open throttle for long runs.
15,000 miles so far and it runs better then ever.
I never had a bike I would not take to red line often, even old ones, and I never blew one up or had one wear out quickly.
I do tend to change the oil in my bikes often though.