Over 100 people have signed up to take part in this weekend's Isle of Man Cycling Challenge.
The event will take place on the TT Mountain Course and for the first time will feature velomobiles.
Velomobiles are human powered vehicles, typically a recumbent trike or quad, which are enclosed in an aerodynamic body or fairing.
The event starts at the TT Grandstand at 8:30am and is expected to finish at 5pm.
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