Heavy bike&core Workout

A.
20min Bike erg (85-90% effort)

B.
3 sets:
40s ON / 40s OFF
1. Burpee over parallettes
2. KBS
3. Slamball
4. Alt V-ups
5. Assault/Xebex
6. DU

C.
Tabata:
Cyclist crunch / Toe touches