Yamaha XSR900 2019 Owner's Manual page 70

UBAEE0E0.book Page 17 Tuesday, December 10, 2019 2:42 PM
Periodic maintenance and adjustment
Tire information
1. Tire air valve
2. Tire air valve core
3. Tire air valve cap with seal
7
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 shall be
checked by tire specialists to ascertain
their suitability for further use.
WARNING
The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the motorcy-
cle may be different, which
could lead to an accident.
Always make sure that the valve
caps are securely installed to
prevent air pressure leakage.
Use only the tire valves and
valve cores listed below to
avoid tire deflation during a ride.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
Front tire:
Size:
120/70 ZR17M/C(58W)
Manufacturer/model:
BRIDGESTONE/S20F M
Rear tire:
Size:
180/55 ZR17M/C (73W)
Manufacturer/model:
BRIDGESTONE/S20R M
FRONT and REAR:
Tire air valve:
TR412
EWA10902
Valve core:
#9100 (original)
7-17
WARNING
This motorcycle is fitted with super-
high-speed tires. Note the following
points in order to make the most ef-
ficient use of these tires.
Use only the specified replace-
ment tires. Other tires may run
the danger of bursting at super
high speeds.
Brand-new tires can have a rel-
atively poor grip on certain road
surfaces until they have been
"broken in". Therefore, it is ad-
visable before doing any high-
speed riding to ride conserva-
tively for approximately 100 km
(60 mi) after installing a new tire.
The tires must be warmed up
before a high-speed run.
Always adjust the tire air pres-
sure according to the operating
conditions.
EWA10601