he Provec-run Kawasaki works outfit has been the dominant force in the championship for the past five years, with Sykes claiming the 2013 crown and Rea proving unbeatable since 2015.
The latter has amassed 23 victories in the three years since joining the team.
Kawasaki had a strong start to the season with Rea topping two and one test days at Portimao and Jerez respectively and Sykes setting the pace on the final one.
“I probably had the best winter I’ve had for a long time, away from the bike as well, and I am just really excited to get stuck in,” said Rea.
“These last three years, kind of wrapped up into an incredible emotion, it has been a snowball effect since I joined Kawasaki.
“It’s a match made in heaven with the ZX-10RR and it is a dream, I am living the dream.
“I am really enjoying riding the bike and working with my team every weekend and looking forward to what the future holds.”
Sykes added: “We have a great partnership and it is a big family, it has been a pleasure working together.”
“World champion, and fighting for that world championship six times in the last six years, always inside the top three, which is not too bad.
“Obviously with my teammate I’ve got a little bit of a work to do and in the past few years, we have had a few low points, just struggling with getting the best out of myself with the bike.
“I feel very much prepared for this new season.”
Kawasaki will be one of seven manufacturers represented on the 2018 WSBK grid alongside main rival Ducati, Yamaha, Aprilia, BMW, MV Agusta and Suzuki.