Source: MotoGP.com.

Tomorrow will see the much-awaited opening MotoGP test of 2014 as the field gathers in Malaysia. For the first time this year, Factory and Open machines will share the track as riders and personnel get to grips with new teams.

Following on from the post-Valencia Grand Prix test in November that saw new bikes break cover for the first time, 2014 testing now begins in earnest with the traditional early-year trip to the Sepang International Circuit on the outskirts of Kuala Lumpur.

Key terms this season are ‘Factory’ and ‘Open’, with the CRT label having now disappeared from the sport.

Furthermore, the first Sepang gathering will mark one of only two occasions on which all teams and riders are able to share a race track for testing this pre-season, as the March tyre test at Phillip Island will feature only the official riders of the factory teams, with those in question then not taking part in the following test in Qatar.

At Sepang this week, Marc Marquez will continue development with Repsol Honda Team as he retains the number 93 plate, having elected not to take on the world champion’s privilege of running number one.

On the other side of the garage, Dani Pedrosa will continue to adapt to no longer working directly with long-term mentor Alberto Puig. There are also staff changes for Valentino Rossi, as he resumes work with new Crew Chief Silvano Galbusera who replaces Jeremy Burgess.

For Ducati Team, 2014 is the start of a new era. Andrea Dovizioso reunites with former Monster Yamaha Tech3 teammate Cal Crutchlow, as ex-Aprilia guru Gigi Dall’Igna joins the outfit for what is hoped to be a dramatic turnaround in fortune over the next few seasons.

The Italian, now in the role of general manager for Ducati Corse, aims to start by improving communication between team members working at the circuits and those back at base in Bologna, Italy.

Boosting the line-up for this test, Ducati Test Team rider Michele Pirro will also be in action at Sepang, as well as Yamaha Factory Test Team’s Katsuyuki Nakasuga and Wataru Yoshikawa plus HRC Test Team representative Kosuke Akiyoshi.

The satellite riders take on new challenges as well. LCR Honda MotoGP’s Stefan Bradl returns to Sepang for the first time since breaking his ankle during last year’s race meeting, while Tech3 field reigning Moto2 World Champion Pol Espargaro – younger brother of Aleix – alongside Bradley Smith.

Both Gresini Honda and Pramac Ducati have split their development for this year, as second riders Scott Redding and Yonny Hernandez will race Open equipment.

For the first time ever, all bikes in the premier class are now running the Dorna-supplied electronic control unit (ECU) as part of the continued initiative to lower running costs in MotoGP, yet there are numerous subtle differences between Factory and Open specification bikes.

Other exciting additions to the grid include four brand-new Honda RCV1000R customer bikes, to be ridden by Gresini’s Redding, Cardion AB Motoracing’s Karel Abraham and the Drive M7 Aspar Team pairing of Hiroshi Aoyama and 2006 MotoGP World Champion Nicky Hayden, who is competing on a Honda motorcycle for the first time in over five years.

NGM Mobile Forward racing is running an FTR-Yamaha package including a lease engine deal. With this, the outfit will have five Yamaha engines per rider across the season (three new units and two rebuilds). Within the team, Colin Edwards is joined by Aleix Espargaro.

A total of five rookies are on this year’s grid, with former Moto2 rivals Pol Espargaro and Redding accompanied by Britain’s Leon Camier with IodaRacing Project, although the team is not testing this week.

Australian Broc Parkes has signed up with PBM – with the team this year racing two own-built bikes for the first time – while France’s Mike di Meglio returns from an injury-affected 2013 to make his premier class debut with Avintia Racing.

The first official MotoGP test of 2014 will run between Tuesday and Thursday, with the Sepang track open between 10:00am and 6:00pm local time.