Allora, per Pirelli, Metzeler e Dunlop abbiamo una risposta definitiva.
"TYRE MOUNTING - IMPORTANT INFORMATION WARNING
Tyres are only to be used on vehicles for which motorcycle tyres were originally approved by the manufacturer.
Any other use can be dangerous. Check if the tyre has directional arrows. If it does, you must
mount the tyre so that the arrow points in the direction of rotation.
Some PIRELLI tyres have a red dot
on the side wall. This indicates the lightest point, and should be positioned next to the valve. To seat the
bead please use tyre mounting lubricant or soapy water, remove the valve stern core and inflate the tyre.
For safety reasons do not inflate motorcycle tyres to more than 40 psi (2,8 bar); for scooters tyres do net
exceed 150 % of the indicated maximum pressure. Be sure to reinstall the valve stem core and inflate
the tyre/tube to the recommended riding pressure. Check the bead control lines for proper seating. If the
beads are not properly seated, you will have to deflate the tyres/tubes and repeat the above procedure."
https://www.metzeler.com/en-gb/tech-...ty-maintenance
"Some Metzeler tyres have a red dot on the side wall. This indicates the lightest point,
and should be positioned next to the valve."
"
Dunlop street tires have balance dots in the bead or sidewall area to indicate the lightest point of the tire. All Dunlop street tires should be installed with these balance dots at the valve. All Dunlop street tires also have arrows on the sidewall, which indicate the correct direction of rotation.
Positioning of balance marks and inclusion of directional arrows are not universal among motorcycle tire manufacturers."
https://www.dunlopmotorcycletires.com/about/care/#tip-7
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