Lincoln's Alex Lowes has joined the Motorpoint Yamaha British Superbike team until the end of the season.
The move comes just a day after Lowes, 20, parted company with MSS Kawasaki.
Lowes said: "This is an amazing opportunity for me. 2011 has been a roller coaster season with some very steep learning curves.
"Everyone I have worked with over the year has been great and circumstances now have given me the chance to get one of the best bikes in the championship."
Lowes will partner Tommy Bridewell at Motorpoint Yamaha for the remaing three rounds of the season.
The Lincoln rider joined MSS Kawasaki as a stand-in for the injured Stuart Easton after dominating the BSB Evo class with WFR Honda in the early part of the season, but picked up points in only three of his 13 races with them.
He also rode for Castrol Honda in two World Superbikes rounds as a stand-in for Jonathan Rea, claiming a solitary championship point at Brno in the Czech Republic.