i assure you that the high pitch noises associated with braking
is normal. in fact, the braking sound of SMRTB bendies can be worse
but it's the design of the chassis. nothing to do with
servicing.
if u wan to reduce the noise, we could have oil on our braking
pads, which will result in less braking power, which is not safe.
tat'll be worse.
it is not uncommon for larger vehicles to have "louder brakes" as
the braking power required of such heavy vehicles is higher and
more powerful air-powered brake systems are used, thus resulting in
a harder brake.
