How many hours can a 68 mile bike ride take?

That depends on how fast of a cyclist you are. If you are an "A" rider you're cycling (approx) faster than 15mph.
A "B" cycles rides 13-15mph.
A "C" rider goese10-15mph
and a "D" cyclist goes under 10mph.

The elevation highs and lows will also play a factor, as well as wind and road conditions.
 
Back
Top