Marc Marquez says Honda's new swingarm-mounted winglet, which it introduced in MotoGP Americas Grand Prix practice, is making a difference under braking. Ducati was the first to race the controversial device in Qatar, which came under protest from Honda, Aprilia, Suzuki and KTM following Andrea Dovizioso's Losail victory.  The device, which Ducati submitted to the FIM as a rear tyre cooling device, was deemed legal ahead of the Argentina race, with Honda submitting its version for homologation at Termas de Rio Hondo. Honda initially had it rejected as it claimed its use was purely aerodynamic, and thus illegal.  However, resubmitting the design as a rear tyre cooler...
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