William Dunlop will ride for the Wilson Craig Honda Racing team at this year's TT.
The Ballymoney rider competed for the Londonderry-based outfit at last season's Sunflower Trophy meeting, so the move is not totally unexpected.
It means Wilson Craig, which supported Guy Martin at TT 2010, will be mounting a twin assault on the mountain course, with Dunlop riding alongside Australian teammate Cameron Donald.
Cycling: Bostock bound for 2026 Tour of Britain
Manxman in Great Britain squad for next month's races
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Opening fixtures of new campaign taking place tomorrow (29 Aug)
Tributes paid to Island resident and Olympic Silver medallist, Maurice Herriott
"A remarkable athlete, and a big part of our community."