I think it's a reasonable goal for the spring. Are you using a power meter now? I didn't notice one on your bike at Epicman this year. Did you borrow one for Esprit?

In any case, I dug out the file for Muskoka this year. If i remember we had almost identical bike splits there.
55.92km @ 214avg (3.05/kg), good for 35.12km/h avg and a split of 0:1:35:36 on the computer.

Cheers.