How can a cyclist, new to commuting by bike and not all that experienced in riding, estimate how long a commute will take? I have been riding for 4 days to and from work. 156km over over 4 days. I'd ...
To answer the comment after this question, what should one know about wind- and water-resistent jackets? For example, what is "Gore-Tex", is it always expensive, and is there anything else like it? ...