They still have a few issues they need to iron out, but Tom Sykes' early impressions of the Kawasaki ZX-10R are very positive.
The new generation bike was first put through its paces at the first official winter test in Aragon and then Sykes and Jonathan Rea added to the mileage at the two-day test in Jerez last week.
The 2013 World Champion gave a glowing review after the latest test in Spain.
"We suffered some issues which set us back, so we didn’t get to try the interesting things which I was hoping to do," he told worldsbk.com. "That’s a shame, but we still have a lot of days remaining. Honestly speaking, I think we are at a very good level and we have some very interesting things to try, which Jonathan (Rea) has already managed to try.
"The feeling with the new ZX-10R is what we have been wanting. I think we have done a good job. At the next test, we can focus on what we missed in Jerez and I think we will make some good steps forward.
"The good thing is we are improving all the time, which excites me. With Jerez not being the strongest venue for me, it is good that we have a lot of testing here because we can work on the bike and try and improve it in certain styles of corners. I am happy about that and it is good that we can come back here in a few weeks’ time."