Bike countdown Workout

Ride-21-Ride-15-Ride-9:

Ride 500m
21 x burpees
Ride 500m
21 x push ups
Ride 500m
21 x sit ups
Ride 500m
15 x burpees
Ride 500m
15 x push ups
Ride 500m
15 x sit ups
Ride 500m
9 x burpees
Ride 500m
9 x push ups
Ride 500m
9 x sit ups