MotoGP's new battleground: Ducati borrowed Aprilia's fins, so Aprilia built better ones
MotoGP aerodynamics has a new frontier: Aprilia bolted two vertical fins to the RS-GP swingarm at Silverstone, and the part reappeared months later on Marc Marquez's Ducati at Phillip Island. In Malaysia Aprilia answered with an L-shaped version, and next year's rules, with 850cc engines, still say nothing about swingarms.

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A aerodinâmica vai ser contida pelo próximo conjunto de regras técnicas da MotoGP, mas a era atual ainda recompensa invenção, e a nova fronteira não é mais a carenagem.
Depois de carenagens escalonadas, aletas de cauda, asas de garfo e asas de assento veio o braço oscilante, progressivamente escondido atrás de painéis aerodinâmicos. A Aprilia abriu uma nova linha de ataque em Silverstone, depois da pausa de verão, parafusando duas aletas verticais na traseira do braço oscilante da RS-GP, provavelmente para domar a turbulência que sai do pneu traseiro.
A peça ficou na moto de Noale por meses — até Phillip Island, onde uma similar apareceu na Ducati de Marc Márquez. Os engenheiros italianos evidentemente estudaram o rival com atenção: Márquez usou a peça durante todo o primeiro dia em Sepang, onde liderou as duas sessões.
A Aprilia não ficou parada. Na Malásia apareceu uma versão nova na moto de Marco Bezzecchi, um L anguloso que sobe e também avança para trás.
Que as fábricas continuem gastando nessas peças com quatro etapas a disputar sugere que a ideia sobrevive às regras atuais. As restrições do próximo ano atingem principalmente as dimensões laterais, e esse elemento sai muito menos do que o ponto mais largo da carenagem. O pacote de 850cc também vai exigir homologação das peças de cauda, sem dizer nada sobre os braços oscilantes.
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