12 mile bike

Rode another 12. I started trying to work on a higher cadence, but i feel very unstable on the bike when I am pedalling that fast. I am usually around 60. I was getting up to the 80-90 and like I said, i did not feel comfortable, but I will keep working on it. I then did increasing speed laps, and then went for max speed and got up to 24.2. All told, I rode for 58 minutes, averaging 12.4.