Batham's Brewery rider Michael Rutter is a late addition to this year's Classic TT line-up.
The Midlander has replaced Manxman Dan Kneen, who was injured in Saturday's Ulster Grand Prix Supersport Race, in the Team Ripley Land Racing outfit.
He'll ride the G50 Matchless in the Bennetts 500cc Race on Saturday.
Experienced campaigner Ian Lougher, a ten-time TT Race winner, will campaign the team's 350cc Drixon Honda in Monday's Okells 350cc race.
The 350 machine is the same one that Chris Palmer won last year's corresponding race on.
Shropshire rider Ben Wylie will take Kneen's ride in the Motorsport Merchandise F1 Race on Monday 25th August, riding the RLR GSXR 750cc.
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