Nicky Hayden enjoyed his first taste of the Honda CBR1000RR SP in a weather-affected test at Aragon on Monday.
The Kentucky Kid has made the switch to WSBK after 13 years in MotoGP. However, thick fog and cold temperatures meant that Hayden – and the rest of the riders in attendance – were stymied in their efforts.
1st day with the new ride! pic.twitter.com/NQT5R1h5LK
— Nicky Hayden (@NickyHayden) November 16, 2015
Hayden's team-mate, Michael van der Mark, was one of the few riders who ventured onto the track in the morning, but the Dutch rider put in just a single lap.
The track did finally dry, with conditions improving with 30 minutes remaining in the day's test.
Chaz Davies, who is the lone Aruba.it Racing-Ducati rider at the test with Davide Giugliano still out injured, was hoping to assess his engine and chassis, but was unable to do any meaningful testing.
World Champion Jonathan Rea went out in the final 30 minutes and posted 14 laps as he looked to try out different chassis and engine settings. Rea's Kawasaki team-mate, Tom Sykes, remained in the garage throughout the day.
Yamaha Motor Europe had planned to use new parts on the YZR-R1, but instead Sylvain Guintoli and Alex Lowes used the same machines that they tested in Jerez.
Testing continues on Tuesday for a second and final day, with sunny conditions expected.