Yamaha GYTR YZF-R1 Manual page 20

About the front and rear wheel speed sensor
Do not remove the speed sensors installed at
the front and rear wheels because they are
used for regulating YRC controls.
• If you change the front and rear wheels
to non-standard parts, manufacture and
attach a rotor and sensor referring to the
diagram below.
• If you change the front fork/rear brake
bracket to a non-standard part too, create
a mount for the sensor assembly and
attach the front and rear wheel sensors
referring to the diagram below.
*1. When manufacturing a rotor and sensor,
use a steel type material with magnetic
properties.
*2. Make the angle of attachment in the
rotation direction of the rotor of the sensor
assembly the same as the angle indicated
in the diagram below.
*3. If you change the rotor sensor or sensor
assembly attachment bracket to a non-
standard part, there is a possibility of
malfunction due to vibration or noise even
if the part is attached properly.
Holes (40 locations)
40×4±0.05
(when D=Φ90: 4 mm, when D=Φ180: 8 mm)
Center of sensor
D/2±0.2
ROTOR, SENSOR
– 17 –
2CR-85970-00
FR. WHEEL SENSOR ASSY.
2CR-85980-00
RR. WHEEL SENSOR ASSY.
ROTOR, SENSOR
Φ11.8
Sensor mount
THIRD ANGLE PROJECTION METHOD
14±0.1
+0.1
M6×1.0
0
Reference shape