Honda's Jonathan Rea has drawn no firm conclusions on a new engine spec he has been testing at Assen over the past two days but says he has made significant steps forward with a new electronics package.

The Irishman, who can be seen starring on the cover of the new bikesportnews on sale today, lost some time yesterday as the track was slippery but after some laps he was able to test a variety of components the team were a bit windy about using on a race weekend.

"There was some slippery stuff on the circuit first thing yesterday and it took some time to put some rubber down, but it turned out pretty good in the end. We got to try a lot of new stuff, some of which we’d be reluctant to try over a race weekend and we ended up faster than over the race weekend in April," said Rea.

"The new engine was a little better on the straights but we won’t make any firm conclusions until we get to Aragon with our rivals. We worked a lot on gathering data for new electronics strategies and we’ve definitely made a step forward here and we’re looking forward to using that.

"The throttle is smoother on acceleration and we also tried quite an extreme front fork setting which gave a good feeling. I’m looking forward to a couple of weeks off now, before re-gathering with the team at Aragon."