King's Lynn Stars have agreed deals to keep Niels-Kristian Iversen and Mads Korneliussen for the 2012 campaign.
The Danish pair return to Norfolk after helping the Stars reach last season's Elite League play-off semi-finals.
Iversen, 29, finished 2011 with an average of 7.80 points per meeting, while Korneliussen, 28, averaged 7.44.
"It feels very good, I enjoyed the year there so I'm pleased to be back," said Iversen, who will ride on an eight-point average.
He remains an asset for Peterborough, but they have approved his extended stay and he added: "2011 is a good year to build on and I believe it's the place for me to take my riding a step further."
Meanwhile, supporters' rider of the year Korneliussen said: "There was nowhere else I wanted to go.
"I didn't want to go back to Swindon and I had a good chat with Alun Rossiter [Swindon boss] about it and we both came to the decision that it was best for me to stay at King's Lynn because I've had a successful year and we can build on that."