Always use new rubber valves when replacing tires

Attention: When fitting tires, always comply with any Instructions on the side walls with regard to direction of rotation or side-specific assembly (e.g. arrow or "outer/Inner")

When fitting tubeless tires, check that the sealing areas of the tire and the disk wheel are clean and look for any damage. With regard to this, always bear in mind that a tubeless tire is sealed by the bead base. If the side wall of the bead were used for sealing, it would be possible for air to escape under extreme driving conditions.

Check the rim flange of light alloy disk wheels for wear (see Page 44 - 6).

When fitting the tire beads into place, use only the tire assembly compounds specified below. If an unsuitable assembly compound Is used, the following may occur: Tire may rotate on the wheel, bead core may break during fitting and the rim surface may be damaged by aggressive substances. Caution: Use only TIP TOP Universal, Order No. 593 0601 (3.5 kgs can) or Contifix as tire assembly compound.

If Contifix is used, coat beads sparingly (to avoid tire rotation on the wheel rim) and avoid driving the car for 24 hours after tire fitting or matching if possible.

Tell your clients to avoid extreme driving behavior (acceleration, braking) during the first 60 to 120 miles with new or newly fitted tires to prevent the tire twisting on the rim under driving conditions. Mark the tires if necessary.

A maximum of 20 mm twisting of the tire on the rim must be regarded as the ultimate limit value. The best result of the wheel balancing in such cases is usually only moderate. This will have a detrimental affect on an optimally balanced wheel.

Mount the tire in a beneficial position to the rim (matching) in order to achieve optimum smooth running. The following text describes both uncontrolled matching and controlled matching with identification marking or using a wheel-balancing machine with matching program.

After fitting, inflate tubeless tires to approx. 4 bar (58 psi) without valve inserts, to ensure that they are correctly seated on the rims. At 3.3 bar (4.5 bar for wheels with asymmetrical hump)), at the latest, the tire bead must jump from the well base over the hump of the bead seat to avoid breaking the bead core. Screw in the valve insert and inflate to the prescribed tire pressure.

The max. permitted radial and lateral run-out of the wheel (tire + rim) is 1.25 mm. Try to achieve values less than 1.0 mm and greater than 0.5 mm.

If necessary, turn the tire on the rim by 90° or 180* to obtain an acceptable value (uncontrolled matching). Controlled matching: align the highest point of the rim with the green or white dot on the side wall of the tire. The highest point of the rim must be determined before- hand. In the case of forged disk wheels, however, this is identified by a milled recess in the rim well as well as by a red dot glued to the outer side.

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