Fresh from the season-opening Qatar MotoGP, Jorge Lorenzo and Andrea Dovizioso took part in a private Ducati test at Jerez on Wednesday.
Lorenzo, who finished eleventh on his Desmosedici debut at Losail, rode for a mammoth 82 laps, including a short run with the special yet-to-be-homologated 'hammerhead' fairing.
Interestingly, an image posted by Lorenzo with Ducati test rider Michele Pirro (who rode the day before the race riders) appeared to show a possible new version of the fairing, painted red and white, in the background:
Dovizioso, a close runner-up to Maverick Vinales in Qatar, completed 51 laps (race distance 27 laps) as he worked on general set-up ahead of next month's Spanish Grand Prix.
No times were issued, but the day was described as 'quite positive', with Lorenzo 'working well' and track conditions 'perfect'.
The Jerez race was a tough event for Ducati last season, with Andrea Iannone taking the chequered flag in seventh place, 26-seconds behind race winner Valentino Rossi.
This week's outing marks Ducati's first use of their five available private test days, starting from November's Valencia finale.
Repsol Honda held a private one-day test at Jerez last month, while Movistar Yamaha's Valentino Rossi and Maverick Vinales spent two days at Sepang in November, alongside Tech 3's Jonas Folger and Johann Zarco.
At the same time, Jack Miller completed two days for Honda at Jerez, where the satellite Ducati teams (Pramac, Avintia and Aspar) also rode for two days, and Suzuki's Andrea Iannone one day.
Aprilia and new manufacturer KTM are not yet subject to the five-day private testing limit, which only applies to race riders.
Pirro is expected back on track on Thursday, while round two of the world championship takes place in Argentina next weekend.
By Peter McLaren
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