Claire Lomas - known as the 'Bionic Woman' - will no longer be taking on the TT course next month.
The news was confirmed in a statement by the Manx Motorcycle Club this week.
They say at this time the event comes 'too soon' due to her current level of experience and are putting her safety first.
BSB are wishing her the best of luck for the future whilst she gains more experience on a motorcycle.