Wahoo ELEMNT (Roam and Bolt v2) on Specialized e-bikes (Garmin Edge compared)

[Jeremy McCreary]

Just a matter of style — kph vs. km/h. Both make sense, and both are unambiguous.

If we want to get finicky about physical quantities and units that actually make a difference in an ebike context, we should require a proficiency test in telling the difference between mass (kg) and force (Newtons), between stored electrical energy (Watt-hours) and rate of energy transfer (Watts), and between electrical and mechanical wattage in electric motors. These are all very different physical quantities.

 

[Stefan Mikes]

If we want to get finicky about physical quantities and units that actually make a difference in an ebike context, we should require a proficiency test in telling the difference between mass (kg) and force (Newtons), between stored electrical energy (Watt-hours) and rate of energy transfer (Watts), and between electrical and mechanical wattage in electric motors. These are all very different physical quantities.

I think we (you, Base, I) understand it well.

I cannot agree to the kph though. It is something only North Americans could invent Wahoo seems to get a lot of requests from the European users! All in all, the whole road cycling world is metric


Regarding lbmol and kmol: The American definition is "the amount of matter expressed in pounds". The SI definition is: "kmol is the amount of matter expressed in kilogram". By chance, 1 kilogram-mole is equal to 1000 gram-moles (moles per SI definition)

 

[Jeremy McCreary]

I cannot agree to the kph though. It is something only North Americans could invent Wahoo seems to get a lot of requests from the European users! All in all, the whole road cycling world is metric

Well, we're quite happy with our mph and kph. If they irritate folks who like to think their way is the only way — when the only truly rational way is m/s, which no one uses in daily life — so much the better!

On the other hand, I have no attachment to any unit having to do with pounds.

 

[Stefan Mikes]

A km/h is 3.6 m/s