Yamaha R1 Owner's Manual page 96

Periodic maintenance and adjustment
Cold tire air pressure:
1
Front:
250 kPa (2.50 kgf/cm
Rear:
2
290 kPa (2.90 kgf/cm
Maximum load*:
3
188 kg (414 lb)
* Total weight of rider, passenger, car-
go and accessories
4
WARNING
5
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
6
cause an accident.
7
Tire inspection
8
9
10
11
1. Tire sidewall
12
2. Tire tread depth
The tires should be checked before
each ride. If the center tread depth
2
reaches the specified limit, if the tire
, 36 psi)
has a nail or glass fragments in it, or if
2
, 42 psi)
the sidewall is cracked, have a Yamaha
dealer replace the tire immediately.
Minimum tire tread depth (front and
rear):
1.5 mm (0.06 in)
EWA10512
TIP
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
WARNING

Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.

The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience to do so.

Tire information
EWA10472
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
This model is equipped with tubeless
tires and tire air valves.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires should be
8-19
Ride at moderate speeds after
changing a tire since the tire
surface must first be "broken
in" for it to develop its optimal
characteristics.