Pol Espargaro was more than pleased with the progress made at the end-of-season MotoGP test at Valencia, having placed third overall on the timesheets.

Still riding with a broken bone in his foot from Sepang, the younger Espargaro brother knocked a second off his best race time on Monday afternoon while focussing on developing electronics.

When asked to specify what he and the Tech3 Yamaha team had put through the paces Espargaro said, "Many things. We tested something with the front. Also electronics. We test something of Monday. In the first day of testing you always have some doubts and today we clarify everything and we are happy.

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"The most positive thing for sure is the electronics. We test something on the engine. You know everything is electronic with the engine and we test something that is really nice, especially when the tyre drops - this is where we have some problems. It worked really good and it's more comfortable."

Espargaro also confirmed that the Tech3 team weren't using an updated 'seamless' gearbox. "No," he said. "Well, yes but not seamless between one and two [first and second gears]."

Although present at the circuit on Tuesday, the 23-year old opted not to test his M1 in wet conditions through fear of reinjuring his healing foot.

"Actually I don't have my injury fixed. I think it was too much risk and I want to start the preseason in good conditions to try and work as fast as possible and to be in Malaysia with good feelings, a good body."

One of the test's surprises was older brother Aleix's proximity to the front. The new factory Suzuki rider's Wednesday time was just one second slower than Marc Marquez's effort. Pol, however, wasn't surprised by his brother's pace.

"I always know how fast my brother is. The other people didn't know. Now he's showing what he can do and he will show more. The most difficult thing for him will come in Malaysia, a long track with long straights that are really fast. Also when he goes to the new track with his bike the electronics will not be perfect.

"The more difficult time will come but he is already fast."