The Manx government may have to hand over ?10,000 to a zero emissions motorcyle team tomorrow (Wednesday).
The sum has been promised to the owners of the first bike to complete a lap of the mountain circuit at an average speed of 100mph.
In Monday's practice session Mark Miller, riding the MotoCzysz EP1, managed a lap at 94mph and was still able to record a speed of 120mph going down Glencrutchery Road.
Team boss and owner Michael Czysz says the machine has a bit more to give:
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