MotoGP: KTM Tests New Swingarm Aero In Austria

MotoGP: KTM Tests New Swingarm Aero In Austria

© 2024, Roadracing World Publishing, Inc. By Michael Gougis.

The evolution of MotoGP aerodynamic development continues unabated, with KTM testing new swingarm-mounted wings in Friday practice at the MotoGP race weekend at the Red Bull Ring. Test rider Pol Espargaro took to the track for his second MotoGP wildcard appearance this season with the new configuration.

The wings (see arrows above) are designed to deliver downforce directly to the rear tire. Wings mounted on the bodywork, such as the fairing nose or tailpiece, deliver their aerodynamic effect to the contact patch of the tires via the suspension. Mounting the downforce-producing devices directly to an unsprung component like a swingarm means the downforce is not reduced or compromised by the movement of the suspension.

Mounting the wings here is not perfect, because they are in compromised air behind the rider’s legs and boots. The areas behind the rider’s legs and between the rear wheel and tail section are, aerodynamically speaking, a mess. But locating the wings here can still be beneficial, as they would likely add to the downforce generated by the aerofoils located on the tail section – an area where KTM has experimented significantly this season.

Multiple MotoGP riders this year, in post-session media scrums, have said the Ducati Desmosedicis – especially this year’s GP24 – are able to get more from the new-for-2024 Michelin rear slick than other bikes. This has helped the Ducatis get better exit drive – the Desmosedicis are moving forward where other machines are spinning the rear tire. The KTM swingarm components are an attempt to help the RC16 get more grip from the rear. 

KTM has sought more downforce on the rear of the MotoGP RC16 racebike this season with increasingly extensive aerodynamic devices. The upper tail-mounted wing complex has been complemented by a set of side-mounted wings, as shown by the arrow above. The GASGAS machines appeared in this configuration at the Sachesnring. Photo by Michael Gougis.

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