Yamaha YZF-R125 Service Manual: Checking the tires

• The tire pressure should only be checked and regulated when the tire temperature equals the ambient air temperature.
• The tire pressure must be adjusted according to the total weight (including cargo, rider, passenger and accessories) and the anticipated riding speed.
• Operation of an overloaded vehicle could cause tire damage, an accident or an injury.

  NEVER OVERLOAD THE VEHICLE.

It is dangerous to ride with a worn-out tire.

When the tire tread reaches the wear limit, replace the tire immediately.

• Do not use a tubeless tire on a wheel designed only for tube tires to avoid tire failure and personal injury from sudden deflation.
• When using a tube tire, be sure to install the correct tube.
• Always replace a new tube tire and a new tube as a set.
• To avoid pinching the tube, make sure the wheel rim band and tube are centered in the wheel groove.
• Patching a punctured tube is not recommended.

  If it is absolutely necessary to do so, use great care and replace the tube as soon as possible with a good quality replacement.

After extensive tests, the tires listed below have been approved by MBK Industrie for this model. The front and rear tires should always be by the same manufacturer and of the same design. No guarantee concerning handling characteristics can be given if a tire combination other than one approved by MBK Industrie is used on this vehicle.

New tires have a relatively low grip on the road surface until they have been slightly worn. Therefore, approximately 100 km should be traveled at normal speed before any high-speed riding is done.