2006 YAMAHA YFZ450 tire size

2-13
8Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such
as ice, go slowly and be very cautious in
order to reduce the chance of skidding or slid-
ing out of control.
8Never operate an ATV in fast flowing water or
in water deeper than that recommended in
this manual. Remember that wet brakes may
have reduced stopping ability. Test your
brakes after leaving water. If necessary, apply
them several times to let friction dry out the
linings.
8Always use the size and type of tires specified
in this manual.
8Always maintain proper tire pressure as
described in this manual.
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5-23
EBU01580
Tires
Always use the recommended tires.
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Use of improper tires on this ATV, or opera-
tion of this ATV with improper or uneven tire
pressure, may cause loss of control, increas-
ing your risk of accident.
Pay attention to the following.
1. The tires listed below have been approved
by Yamaha Motor Co., Ltd. for this model.
Other tire combinations are not recom-
mended.
Manufacturer Size Type
Front DUNLOP AT21 ×7–10KT341
Radial
Rear DUNLOP AT20 ×10–9KT355A
Radial
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7-15
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Always use the size and type tires specified
in the Owner’s Manual for this vehicle on
pages 5-23–5-25. Always maintain proper tire
pressure as described in the Owner’s Manual
on page 5-27. Use of improper tires on this
ATV, or operation of this ATV with improper
or uneven tire pressure, may cause loss of
control, increasing your risk of an accident.
Do not operate at speeds too fast for your
skills or the conditions.
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Always go at a speed that is proper for the
terrain, visibility and operating conditions,
and your experience. Operating this ATV at
speeds too fast for your skills or the condi-
tions increases your chances of losing con-
trol of the ATV, which can result in an acci-
dent.
5TG-9-63 7 9/16/05 4:32 PM Page 158

10-4
Model YFZ450V
Transmission:
Primary reduction system Spur gear
Primary reduction ratio 62/22 (2.818)
Secondary reduction system Chain drive
Secondary reduction ratio 38/14 (2.714)
Transmission type
Constant mesh 5-speed
Operation Left foot operation
Gear ratio
1st 29/12 (2.416)
2nd 27/14 (1.928)
3rd 25/16 (1.562)
4th 23/18 (1.277)
5th 21/20 (1.050)
Chassis:
Frame type Steel tube frame
Caster angle 5.0°
Trail 21.0 mm
Tire:
Type Tubeless
Size front AT21 ×7 - 10
rear AT20 ×10 - 9
5TG-9-63 9-11 10/27/05 9:32 AM Page 10-4