Strength and Flexibility

I'm going to start posting some of the workouts I do. The purpose of today's workout was strength and flexibility. Since I'm not doing any weight training I figure it would be good to do a strength workout on the bike.

Bike
15 minutes warm up
5 minutes tempo
40 minutes of tempo riding. Every 5 minutes do a sprint in the 53x12 from a dead-stop for 20 seconds. Try to spin the gear as fast as possible.

Core Routine
2 sets of:
20 supine bridges
10 push-ups
1 minute plank
10 push-ups
1 minute side plank
10 push ups
1 minute side plank
crunches
reverse crunches
10 push ups
prone cobra

Flexibility
30 minutes of yoga