In 2016, the best lap time in Race 1 at Phillip Island averaged almost the same as the one at Chang: 174.990 km/h in Australia, 174.527 km/h in Thailand. Even so, the first track puts the brakes under very little strain, while the second is very stressful on the braking system.
The number of times the bikes brake on each track is another factor that isn't very reliable for evaluating how much stress the braking system experiences. At Losail for example, the Superbike riders hit their brakes 13 times on the track's 16 curves, while at Donington they brake only seven times per lap. Contrary to every prediction however, the British circuit proves much more trying on the brakes compared to the Qatar track.
Assen and Aragon, on the other hand, both require riders to brake ten times per lap but the first track is easy on the brakes while the second track falls on the opposite end of the spectrum. One of the reasons for this difference is the intensity of the braking. In Holland, there is only one braking section and it lasts at least four seconds, while at the Spanish track there are three that last just as long.
Obviously, the force in play in a braking section taken at 300 km/h is not the same as braking at 200 km/h. Although we are not dealing with tracks like Mugello and Barcelona where the MotoGP bikes surpass 345 km/h, World Superbike still has circuits where the riders go over 300 km/h.
If however, a track has only one braking section taken at very high speeds and others that are more contained, the stress on the braking system is decidedly less than on a track with numerous high-speed braking sections. Once again, this is best demonstrated by Phillip Island: curve number 1, which is right after the start line, is approached going 312 km/h, a record in World Superbike. Yet, this is the only braking section at the Australian track which is taken at least at 230 km/h.