# Tyre Knowledge
Motorcycle Tyres FAQs
Basic Questions
Collection of motorcycle tyre FAQs:
- Directional arrows
- Multi-track vehicles
- Red dot on motorcycle tyres
- Regrooving
Directional arrows
Where a tyre has directional arrows moulded upon it, the tyre must be fitted so that the relevant front or rear arrow follows the direction of rotation.
Road handling and tyre wear may worsen, or damage to the tyre can occur in extreme circumstances, if these instructions are not followed.
Multi-track vehicles (motorcycle with sidecar, trikes)
Continental motorcycle tyres are developed and tested only for use on single-track vehicles (motorcycles, mopeds, scooters).
Approval from the vehicle manufacturer is required for the use on multi-track vehicles (trikes, quads, combinations, or similar).
Red dot on motorcycle tyres
Some of our tyres, especially bias tyres, have a red dot (or a red circle) on the sidewall of the tyre. The location of the red dot shows the lightest point of the tyre and should be lined up with the valve stem in the rim during mounting (which is typically the heaviest point of the rim). This procedure decreases the needs for balance weights.
For tyres without red dot/marking, it is not necessary to align the tyre to the rim.
Regrooving
It is prohibited to regrove motorcycle tyres.