Alcaniz: World champion Marc Marquez was fastest after Friday practice for the Aragon GP - despite a crash in the second session.
The Honda rider set himself up perfectly for Saturday qualifying by finishing over 1.1 seconds clear of fellow Spaniard Maverick Vinales.
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Marquez, who also leads the championship standings by 93 points from Andrea Dovizioso, came off his bike at high speed going into turn eight but emerged unscathed and is a warm favourite for Sunday's race.
Yamaha's Valentino Rossi was third fastest on Friday with Fabio Quartararo, also of Yamaha in fourth.
