Tyre rotation direction

Most motorcycle tyres are directional. An arrow on the sidewall, often marked 'rotation', shows which way the tyre must turn when the bike rolls forward. The tread pattern and the internal construction, including the joins of the plies, are designed for that direction.

A tyre fitted backwards may still look fine, but it can clear water less effectively, wear unevenly and, in some cases, have reduced strength under braking or acceleration loads.

When fitting a tyre yourself or checking a workshop's work, look at the arrow before mounting it on the rim. Also check that the front tyre is on the front and the rear on the rear, as some sizes overlap, and align the balance dot with the valve if the manufacturer marks one.