Bartle, 24, was part of the Basford United team that won the NPL Division One title in 2018.
A former Notts County youth team player, Bartle moved on to Carlton Town for the 2018/19 before switching to the Gingerbreads in February 2019.
He made 21 starts for Grantham last season, including their very last game of the curtailed 2019/20 season away at Whitby Town.
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