I'm not an experienced cyclist but I have trained hard on the a stationary trainer a few times.
In September I was able to cycle about 12 km in 30 minutes. Throughout the fall I went on a calorie restricted diet and lost nearly 20 lbs.
I went back to the gym and worked on the trainer again (and I inputed my new weight into the machine data as well) but realized I couldn't bike any faster??
I don't think I've lost that much muscle. How come I'm not more efficient on the bike?