Jonathan Rea leaves the Motorland Aragon circuit as the fastest man from the two-day World Superbike test at the circuit. Rea spent the day working on the engine management and electronics. The 2016 Kawasaki ZX-10R has shown itself to be a powerful machine, but the acceleration is not as easy to manage as the 2015 bike. Rea's Kawasaki teammate Tom Sykes also lapped Aragon on Tuesday, after choosing to sit out the first day of the two-day test due to the weather conditions.

Chaz Davies was reported as being second fastest, though no official timing was available. According to the German-language website Speedweek, the Aruba.it Ducati rider posted a lap of 1'51.0, 0.7 slower than the time set by Rea. Davies tested electronics strategies, as well suspension components, in search of more precise steering. Javi Fores took the second Ducati out, standing in for the still injured Davide Giugliano.

Alex Lowes was the faster of the two Pata Yamaha bikes, 1.4 seconds quicker than his new teammate Sylvain Guintoli. The Pata Yamaha pair are still working mainly on getting used to the YZF-R1, running a bike basically in BSB spec, development a priority for later.

The biggest improvement of the day came from Nicky Hayden, who dropped his time by 1.5 seconds from the first day of the test, ending just a tenth behind his teammate Michael van der Mark. The American once again worked his seating position and position on the bike, and learning his way around the team and getting to know his new crew chief, Gerardo Acocella.

The World Superbike teams now pack up and head south again, to Jerez, where they will test at the end of next week.