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400/640 LC4-E
front rear
Road, driver only 1,8 bar (26psi) 2,0 bar (29psi)
Road, with passenger 2,0 bar (29 psi) 2,2 bar (31psi)
640 Supermoto front rear
Road, driver only 2,0 bar (29psi) 2,2 bar (31psi)
Road, with passenger 2,2 bar (31psi) 2,4 bar (34psi)
TIRES - AIR PRESSURE
Tires, air pressure
Tire type, tire condition, and how much air pressure the tires have in them
affect the way your motorcycle rides, and they must therefore be checked
whenever you’re getting ready to go anywhere on your motorcycle.
ƽ
WARNING
ƽ
In order to ensure riding safety and optimal riding performance, only KTM-
approved tires may be used. Other tires can have a negative effect on riding
performance (e.g. vibration at higher speeds).
Approved tires for 400/640 LC4-E (as of September 2000)
METZELER . . . . . . . . . . . . . .E
NDURO 3, ENDURO 4
MICHELIN . . . . . . . . . . . . . .S
IRAC
PIRELLI . . . . . . . . . . . . . . . .MT60, MT70, MT90
– Tire type and size can be found in the technical specifications and in the
homologation certificate
– Tire condition has to be checked every time you want to ride your
motorcycle. Before leaving check for punctures and nails or other sharp
objects that might have become embedded in the tire.
– Refer to the specific regulations in your country for minimum tire tread
requirements. We recommend replacing tires at the latest when the
tread is down to 2 mm.
– Tire pressure should be checked regularly on a “cold” tire. Proper pres-
sure ensures optimum driving comfort and extends the life of your tires.
ƽ
WARNING
ƽ
–D
O NOT MOUNT TIRES WHICH HAVE NOT BEEN APPROVED BY KTM. OTHER TIRES
COULD HAVE ADVERSE EFFECTS ON THE WAY YOUR MOTORCYCLE RIDES
.
–U
SE TIRES OF THE SAME BRAND AND TYPE FOR THE FRONT AND REAR WHEELS.
–FOR YOUR OWN SAFETY REPLACE DAMAGED TIRES IMMEDIATELY
.
–W
ORN TIRES CAN HAVE A NEGATIVE EFFECT ON HOW YOUR MOTORCYCLE
PERFORMS
, ESPECIALLY ON WET SURFACES
–I
F AIR PRESSURE IS TOO LOW
, ABNORMAL WEAR AND OVERHEATING OF THE TIRE
CAN RESULT
Checking spoke tension
The correct spoke tension is very important for the stability of the wheels
and thus for riding safety. A loose spoke causes the wheel to become unba-
lanced and before long other spokes will have come loose. Check spoke
tension, especially on a new motorcycle, in regular intervals. For checking,
tap on each spoke with the blade of a screw driver (see illustration). A clear
tone must be the result. Dull tones indicate loose spokes. If necessary, have
the spokes retightened and the wheel centered by a KTM dealer.
ƽ
WARNING
ƽ
SPOKES CAN TEAR IF YOU CONTINUE TO RIDE WITH THEM LOOSE. THIS MAY LEAD TO AN
UNSTABLE HANDLING OF YOUR MOTORCYCLE
.