MotoGP’s technical boss Danny Aldridge has set out the new aero package rules for this season, which sees each rider - aside from the exempt KTM duo - limited to two fairing and front mudguard designs for the year.

New restrictions on the maximum width (300mm) and length (370mm) of the windscreen have been wheeled in which see the limit of the front bodywork is now 150mm ahead of the front wheel spindle, rather than the leading edge of the front tyre:

• Samples or detailed drawings of the two aero body components (fairing and mudguard) must be delivered to the Technical Director at the first event of the season.

• Homologation is per rider, so different riders with the same motorcycle manufacturer may have different aero bodies.

• One update to the fairing and one update to the mudguard is allowed during the season, for each rider. Samples or drawings must be delivered to the Technical Director prior to the update being used on track.

The update may consist of a previously-homologated component from the same manufacturer, so a satellite team may receive a fairing already used by the factory team.

Both the updated and original fairing or fender may be used by the rider for the rest of the season. Parts cannot be interchanged between the updated and original versions of a component, but the old fairing may be used alongside a new fender and vice versa.

• It is allowed that some parts of a homologated aero body component may not be mounted on the motorcycle (eg. hand guards used in wet weather only).

• Material may be removed (eg. trimming, drilling of holes, etc.) but not be added.

• As a one-off exemption for the first year of Aero Body Homologation, one 2016 aero body can be homologated for use in the 2017 season. Therefore a rider may start the 2017 season with both the 2016 and an initial 2017 aero body available. Such 2016 components must be identified and homologated by the Technical Director prior to the end of the last event of the 2016 season.

When a rider receives a further 2017 update, either the 2016 or initial 2017 component must be removed, so that only two options are available per rider at any time.

• Manufacturers in their first MotoGP season (KTM in 2017) are permitted to make an unlimited number of aero body updates.