Page 19 of 130

Special features
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cally adjusts accordin
g to the vehicle’s
lean angle. To maximize acceleration,
when the vehicle is upright a less
amount of traction control is applied.
When cornering, a greater amount of
traction control is applied.
TIP
The traction control system may
engage when the vehicle travels
over a bump.
You may notice slight changes in
engine and exhaust sounds when
the traction control or other YRC
systems engage.
When TCS is turned off, SCS,
LCS, and LIF are also turned offautomatically.
WARNING
EWA15432
The traction control system is not a
substitute for riding appropriately
for the conditions. Traction control
cannot prevent loss of traction due
to excessive speed when entering
turns, when accelerating hard at a
sharp lean angle, or while braking,
and cannot prevent front wheel slip-
ping. As with any motorcycle, ap-
proach surfaces that may be
slippery with caution and avoid es-pecially slippery surfaces.
When the key is turned to “ON”, the
traction control system automatically
turns on. The traction control system
can be turned on or off manually only
when the key is in the “ON” position and
the motorcycle is stopped.TIPTurn the traction control system off to
help free the rear wheel if the motorcy-
cle gets stuck in mud, sand, or othersoft surfaces.
NOTICE
ECA16801
Use only the specified tires. (See
page 7-18.) Using different sized
tires will prevent the traction control
system from controlling tire rotationaccurately.
SCS
The slide control system regulates en-
gine power output when a sideward
slide is detected in the rear wheel. It ad-
justs power output based on data from
the IMU. This system supports the TCS
to contribute to a smoother ride.
LCS
The launch control system helps the
rider achieve smooth and swift
launches from the starting grid. It
keeps engine speed from rising above
8,000 r/min even when the throttle
grip is fully turned. The LCS regulates
engine power output in conjunction
with the TCS and LIF systems for op-
timal traction and reduced wheel lift.
TCS
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Page 99 of 130

Periodic maintenance and adjustment7-20
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WARNING
EWA10601
This motorcycle is fitted with su-
per-high-speed tires. Note the fol-
lowing points in order to make the
most efficient 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 rela-
tively 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 con-
servatively 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 operatingconditions.
EAU66460
Cast magnesium wheelsTo maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
these wheels.
The wheel rims should be checked
for cracks, bends, warpage or
damage before each ride. If any
damage is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever the tire or wheel has
been changed or replaced. An un-
balanced wheel can result in poor
performance, adverse handling
characteristics, and shortened tire
life.
These wheels are made of magnesium
and require special care.
When balancing the wheel, use
press-on type weights to avoid
scratching the wheel.
Regularly inspect the wheel for
nicks and scratches. Use touch-up
paint or other sealant to prevent
Front tire: Size: 120/70ZR17M/C (58W)
Manufacturer/model:
BRIDGESTONE/BATTLAX RAC-
ING STREET RS10F
Rear tire:
Size: 190/55ZR17M/C (75W) (YZF-R1)
200/55ZR17M/C (78W)
(YZF-R1M)
Manufacturer/model: BRIDGESTONE/BATTLAX RAC-
ING STREET RS10R
FRONT and REAR: Tire air valve:
TR412
Valve core: #9100 (original)
BX4-9-E1_1.book 20 ページ 2018年4月27日 金曜日 午後4時3分
Page 123 of 130

Specifications
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3rd:1.842 (35/19)
4th:
1.579 (30/19)
5th: 1.381 (29/21)
6th: 1.250 (30/24)
Chassis:Frame type: Diamond
Caster angle: 24.0
Trail:
102 mm (4.0 in)Front tire:Type:Tubeless
Size:
120/70ZR17M/C (58W)
Manufacturer/model: BRIDGESTONE/BATTLAX RACING
STREET RS10FRear tire:Type:
Tubeless
Size:
190/55ZR17M/C (75W) (YZF-R1)
200/55ZR17M/C (78W) (YZF-R1M)
Manufacturer/model:
BRIDGESTONE/BATTLAX RACING
STREET RS10R
Loading:Maximum load:187 kg (412 lb)
* (Total weight of rider, passenger, cargo and accessories)Tire air pressure (measured on cold
tires):
Front:250 kPa (2.50 kgf/cm
2, 36 psi)
Rear: 290 kPa (2.90 kgf/cm2, 42 psi)
Front wheel:Wheel type: Cast wheel
Rim size: 17M/C x MT3.50Rear wheel:Wheel type:Cast wheel
Rim size: 17M/C x MT6.00Unified brake system:Operation:Activated by front brakeFront brake:Type:
Hydraulic dual disc brake
Specified brake fluid: DOT 4Rear brake:Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4
Front suspension:Type:
Telescopic fork
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
120 mm (4.7 in)Rear suspension:Type:Swingarm (link suspension)
Spring:
Coil spring
Shock absorber: Gas-hydraulic damper
Wheel travel: 120 mm (4.7 in)Electrical system:System voltage:12 V
Ignition system: TCI
Charging system:
AC magnetoBattery:Model:YTZ7S
Voltage, capacity:
12 V, 6.0 Ah (10 HR)Bulb wattage:Headlight:LED
BX4-9-E1_1.book 2 ページ 2018年4月27日 金曜日 午後4時3分