Morecambe make their third signing of the summer
“I’m very happy to get the deal done,” said Knight-Percival, who had been a free agent after being released by Carlisle United at the end of last season.
“There’s always a worry when you are out of contract so I’m glad to have got this sorted and looking forward to joining Morecambe.”
Knight-Percival’s arrival follows that of fellow defenders Stephen Hendrie and Harry Davis as Adams continues to revamp his squad for the new season.
The Morecambe boss added: “Nathaniel is an experienced, natural left-sided centre-half who was part of the Bradford side that got to the League One play-offs a few seasons ago.
“He will be a good addition to the squad and another we look forward to working with.”