Aleix Espargaro was full of praise for his new Suzuki machine after posting some impressive times on his debut aboard the factory's GSX-RR bike in the first day of MotoGP testing at Valencia.

The first rider to take to the track on Monday morning, Espargaro finished the day in 14th place, 1.3 seconds behind Jorge Lorenzo's fastest time. Speaking at the end of the day the 25-year old was delighted with the handling of the GSX-RR's frame and insisted the electronics exceeded his initial expectations.

"The frame is fantastic and the electronics are better," Espargaro said. "The front is turning a lot and the bike is a lot smaller, more than last year's bike [Forward Yamaha]. And the weight too. I think this bike will be around ten kilos less than last year so it is really easy to move, really easy to change direction. Also the position is really different.

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"I find it really easy to turn the bike and also my riding style last year and the year on the Superbike was more or less the same. But today it was really different. I can lean more and [put] my body more outside the bike. This is really good. We can do a lot more speed than what we did in the corners because, like I say, the frame is fantastic."

Espargaro admits he and the team need to find a more comfortable riding position to accommodate his five foot eleven inch frame, which is in contrast to the Suzuki's compact design.

"We need to change a lot of things. For example my foot touches the exhaust, the level [of the bike] is too short. But this is normal because I am really tall. I feel good on the bike, we need to change a couple of things but this is why we are testing."

When quizzed on the GSX-RR's biggest disadvantage at present Espargaro said, "In the top speed - the power. They know this before I arrived. We need to improve the acceleration a lot. [On corner exit] I have a little bit of wheelie so we lose out on the acceleration. [Also] The engine braking is not so good. [But] I'm really happy because with the power we have we were competitive on the first day. I'm sure that by Qatar we will have more."

His final time of 1m 32.3secs was two tenths of a second faster than Suzuki test rider Randy De Puniet's best lap from the Valencia race weekend. Espargaro added that he and the Frenchman have been in regular contact.

"We are friends because last year we were team-mates [at Aspar]," he said. "Before this test we talk a lot, yesterday and today also. The comments are similar. We improve a little bit on the traction control and the power delivery. The feeling is similar. They did a really great job with the winter testing so the feeling is good."

One change under consideration in the Suzuki garage is a different fairing, to accommodate Espargaro's frame. The Spaniard revealed the team have several options to combat their aerodynamic difficulties.

"I don't know. I feel a lot of wind on the head. I already tell them and I think maybe we need to change the fairing or to change the springs but for sure we have something in mind."

Espargaro joins Suzuki's returning MotoGP team having finished overall seventh, as the leading Open class rider, in this year's world championship. Rookie team-mate Maverick Vinales was less than one second behind Espargaro's best Monday lap.