Dave,
Does this also assume the road miles are on a Coker or at least a
26-29er wheel? Given your assumption of moderately hilly terrain those
sound like a good rule of thumb for engery expended over time.
On the other hand, depending on the intensity of the ride you can get
just as knackered in a one hour bike ride as you can on a one hour uni
ride of 1/3 to 1/2 the distance.
One thing you can get on a bike that you can't on a uni (BS and PP
aside) is running in a large inch-gear on the hills for a huge
workout.
One more factor: How do you rate a 50 lb chromolly tandem with a 60-100
lb kid on the back that isn't adding 100% of the extra horse power
needed to compensate for their extra mass? For training in moderate
hilly riding, I think this may be a 1-2 or 1-3 over uni.
Good topic.
--
UniBrier - Its Time to Ride
Steve DeKoekkoek
Hop Drop & Roll
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