I agree with the rest thing. I was off of my mountain bike and road bike for about 8 days because of vacation. Took an old, clunker bike to the beach with me. Today I rode 15 miles on the road and felt good with fresh legs. I have a mountain bike race on the 15th and want to better my time from last year. I raced beginner and will do so again. The course is about 8 - 9 miles I think, I finished it in 1:02:57.