Cita Iniciado por Antonioc Ver mensaje
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But there was a cost to that. The new four-stroke motocrossers were more expensive and much more maintenance-intensive than the two-stroke machines they replaced. They also tended to have exhaust sound that was offensive for longer distances, putting pressure on motocross tracks in some locations to quiet down or be shut down. ................
Pero esto no es un poco una realidad del siglo pasado??

los 4T actuales (hablo de enduro, supongo que cross será similar) ni se rompen asi como asi (bueno, menos las yamajas WR-F claro ), y yo diria que a la larga tienen mantenimiento mas barato que las 2T, los periodos de reglaje de valvulas se han alargado muchisimo, el gasto de meter aceite para el motor no es significativo y no hay que estar rectificando, nicasilando, cambiando botijo etc etc.