Motorcycle Fitment Information
Tyres are the only parts of the motorcycle which are in contact with the road. Safety in acceleration, braking, steering and cornering all depend on a relatively small area of road contact. It is therefore of paramount importance that tyres should be maintained in good condition at all times and that when the time comes to change them suitable replacements are fitted.
The original tyres for a motorcycle are determined by joint consultation between the motorcycle and tyre manufacturers and take into account all aspects of the operation.
It is recommended that changes in tyre size or type (construction) should not be undertaken without seeking advice from the motorcycle or tyre manufacturers, as the effect on motorcycle handling, safety and clearances must be taken into account. The tyre industry has long recognised the consumer’s role in the regular care and maintenance of their tyres. The point at which a tyre is replaced is a decision for which the owner of the tyre is responsible.
In some other European countries it is illegal to use replacements which differ in certain respects (e.g. size, load, construction, and speed rating) from the tyre fitted originally by the vehicle manufacturer.
Choosing the Right Tyre
Today’s motorcycles vary in design and specification including scooter and all-terrain to suit a variety of pursuits including; race, street, sport, touring, off-road and leisure.
Tyres should be chosen with both the motorcycle and the application in mind. For guidance, or if in doubt, you should: a) Refer to the owner’s manual b) Consult a tyre specialist c) Use the tyre manufacturer’s fitment guide book
Types of Tyres
There are three basic tyre construction types:
- Diagonal (cross) ply
- Radial ply
- Bias belted
Depending on the wheel type, these may be tubeless (no tube required); or tube type (requiring an inner tube). All three construction types can be manufactured in differing tread profiles and patterns which may also be available for front and rear fitment.
It is recommended that tyres be fitted in matched pairs for optimum performance (in certain European countries it is illegal to mix brands on the same bike.
Local tyre regulations should be checked when taking your bike abroad). Special tyres are available for sporting events, some of which are unsuitable for road use and are marked accordingly (normally NHS – Not for Highway Service).