What speed and RPMs?
From the owners manual:
• The table shows maximum recommended engine speed during the break-in period.
Distance traveled Maximum engine speed
0 ∼ 800 km (0 ∼ 500 miles) 4 000 r/min (rpm)
800 ∼ 1 600 km (500 ∼ 1 000 miles) 6 000 r/min (rpm)
I think 4000 rpm in OD is somewhere between 80 and 90 mph