I consider time when trying to equate road mileage to mountain mileage. According to last year's "training" log, I did several hundred miles less in 2010 than in 2009, but a much greater percentage was off-road. In the end, I figured that it was a wash....
I completely agree with that. Time is much more appropriate than miles to compare the two.
Sarah
When it's easy, ride hard; when it's hard, ride easy.
2011 Volagi Liscio
2010 Pegoretti Love #3 "Manovelo"
2011 Mercian Vincitore Special
2003 Eddy Merckx Team SC - stolen
2001 Colnago Ovalmaster Stars and Stripes